FPCN11 CWTO 110618 AAC UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 2:17 A.M. EDT THURSDAY 11 JUNE 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT. BRUCE PENINSULA - SAUBLE BEACH - TOBERMORY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES. LOW 13. THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 21. HUMIDEX 27. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 13. LINDSAY - SOUTHERN KAWARTHA LAKES. TONIGHT..INCREASING CLOUDINESS OVERNIGHT. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 37. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 19. FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES. TONIGHT..INCREASING CLOUDINESS OVERNIGHT. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 25. HUMIDEX 34. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY. TONIGHT..INCREASING CLOUDINESS OVERNIGHT. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 18. APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 26. HUMIDEX 34. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 17. PORT CARLING - PORT SEVERN BRACEBRIDGE - GRAVENHURST. TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23. HUMIDEX 30. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. TOWN OF PARRY SOUND - ROSSEAU - KILLBEAR PARK HUNTSVILLE - BAYSVILLE. TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. TEMPERATURE STEADY NEAR 20. HUMIDEX 28. UV INDEX 7 OR HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. HALIBURTON. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES. LOW 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. RISK OF A THUNDERSTORM EARLY IN THE MORNING. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 30. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLEARING EARLY IN THE EVENING. FOG PATCHES DEVELOPING AFTER MIDNIGHT. LOW 15. BAYFIELD INLET - DUNCHURCH. TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. SOUTH RIVER - BURK'S FALLS. TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. REMAINDER UNCHANGED. END FPCN11 CWTO 110413 AAB UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 12:13 A.M. EDT THURSDAY 11 JUNE 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT. CITY OF TORONTO. TONIGHT..BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 31 EXCEPT 25 ALONG THE LAKESHORE. HUMIDEX 39 EXCEPT 33 ALONG THE LAKESHORE. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. WINDSOR - LEAMINGTON - ESSEX COUNTY. TONIGHT..INCREASING CLOUDINESS AFTER MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CHATHAM-KENT - RONDEAU PARK. TONIGHT..INCREASING CLOUDINESS AFTER MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. SARNIA - LAMBTON. TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING SOUTHWEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTH 20 AFTER MIDNIGHT. LOW 21. ELGIN. TONIGHT..INCREASING CLOUDINESS AFTER MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 30. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. LOW 20. LONDON - MIDDLESEX. TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 30. HUMIDEX 38. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. SIMCOE - DELHI - NORFOLK. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 29. HUMIDEX 39. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 21. DUNNVILLE - CALEDONIA - HALDIMAND. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H AFTER MIDNIGHT. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 30. HUMIDEX 42. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. OXFORD - BRANT. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40. HIGH 30. HUMIDEX 40. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H AFTER MIDNIGHT. TEMPERATURE STEADY NEAR 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 26. HUMIDEX 34. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. TEMPERATURE STEADY NEAR 21. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 22. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 27. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CITY OF HAMILTON. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 29. HUMIDEX 38. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 20. BURLINGTON - OAKVILLE. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. HIGH 27. HUMIDEX 35. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. LOW 20. HALTON HILLS - MILTON. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 30. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. MISSISSAUGA - BRAMPTON. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 31 EXCEPT 25 ALONG THE LAKESHORE. HUMIDEX 39 EXCEPT 33 ALONG THE LAKESHORE. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CALEDON. TONIGHT..BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 20. THURSDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. HIGH 29. HUMIDEX 38. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. LOW 22. VAUGHAN - RICHMOND HILL - MARKHAM. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 30. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 21. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..INCREASING CLOUDINESS AFTER MIDNIGHT. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 20. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND BECOMING SOUTHWEST 30 KM/H THEN LIGHT LATE IN THE MORNING. HIGH 30. HUMIDEX 39. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. LOW 21. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TONIGHT..INCREASING CLOUDINESS AFTER MIDNIGHT. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 17. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 36. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 18. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 20. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 29. HUMIDEX 38. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 20. GODERICH - BLUEWATER - SOUTHERN HURON COUNTY WINGHAM - BLYTH - NORTHERN HURON COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H AFTER MIDNIGHT. LOW 19. THURSDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 28. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H AFTER MIDNIGHT. LOW 19. STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. LOW 21. LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 20. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 29. HUMIDEX 39. UV INDEX 7 OR HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. LOW 21. KITCHENER - CAMBRIDGE - REGION OF WATERLOO GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 20. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 20. MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 17. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 7 OR HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 20. DUFFERIN - INNISFIL. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H LATE IN THE MORNING. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE MORNING. LOW 21. SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND WEST 40 KM/H GUSTING TO 60. LOW 17. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND WEST 40 KM/H GUSTING TO 60 BECOMING SOUTHWEST 20 IN THE MORNING THEN LIGHT IN THE AFTERNOON. HIGH 25. HUMIDEX 33. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H NEAR MIDNIGHT THEN INCREASING TO 40 GUSTING TO 60 BEFORE MORNING. LOW 17. BRUCE PENINSULA - SAUBLE BEACH - TOBERMORY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 13. THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. HIGH 21. HUMIDEX 27. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 13. HANOVER - DUNDALK - SOUTHERN GREY COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 AFTER MIDNIGHT. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 19. OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 AFTER MIDNIGHT. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 19. BARRIE - COLLINGWOOD - HILLSDALE. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 26. HUMIDEX 34. UV INDEX 6 OR HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING THEN 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM BEFORE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 18. MIDLAND - COLDWATER - ORR LAKE ORILLIA - LAGOON CITY - WASHAGO. TONIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 24. HUMIDEX 31. UV INDEX 6 OR HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY BEFORE MORNING WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM BEFORE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. LINDSAY - SOUTHERN KAWARTHA LAKES. TONIGHT..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 37. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 19. FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES. TONIGHT..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 25. HUMIDEX 34. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. PORT CARLING - PORT SEVERN BRACEBRIDGE - GRAVENHURST. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23. HUMIDEX 30. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. TOWN OF PARRY SOUND - ROSSEAU - KILLBEAR PARK HUNTSVILLE - BAYSVILLE. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. TEMPERATURE STEADY NEAR 20. HUMIDEX 28. UV INDEX 7 OR HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. BAYFIELD INLET - DUNCHURCH. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. SOUTH RIVER - BURK'S FALLS. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. REMAINDER UNCHANGED. END FPCN11 CWTO 110231 AAA UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 10:30 P.M. EDT WEDNESDAY 10 JUNE 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT THURSDAY. WINDSOR - LEAMINGTON - ESSEX COUNTY. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CHATHAM-KENT - RONDEAU PARK. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. SARNIA - LAMBTON. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND BECOMING WEST 20 KM/H BEFORE MORNING. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING SOUTHWEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTH 20 AFTER MIDNIGHT. LOW 21. ELGIN. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 30. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. LOW 20. LONDON - MIDDLESEX. TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 30. HUMIDEX 38. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. REMAINDER UNCHANGED. END FPCN11 CWTO 101915 FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 3:30 P.M. EDT WEDNESDAY 10 JUNE 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT THURSDAY. CITY OF TORONTO. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 31 EXCEPT 25 ALONG THE LAKESHORE. HUMIDEX 39 EXCEPT 33 ALONG THE LAKESHORE. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. WINDSOR - LEAMINGTON - ESSEX COUNTY. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. WIND BECOMING WEST 20 BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CHATHAM-KENT - RONDEAU PARK. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. WIND BECOMING WEST 20 BEFORE MORNING. LOW 21. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING WEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. SARNIA - LAMBTON. TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS OVERNIGHT. WIND WEST 20 KM/H. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. WIND WEST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING SOUTHWEST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 31. HUMIDEX 40. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTH 20 AFTER MIDNIGHT. LOW 21. ELGIN. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 30. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. LOW 20. LONDON - MIDDLESEX. TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 30. HUMIDEX 38. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. SIMCOE - DELHI - NORFOLK. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 29. HUMIDEX 39. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 21. DUNNVILLE - CALEDONIA - HALDIMAND. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 30. HUMIDEX 42. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. OXFORD - BRANT. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40. HIGH 30. HUMIDEX 40. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. WIND BECOMING SOUTHWEST 20 AFTER MIDNIGHT. TEMPERATURE STEADY NEAR 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 26. HUMIDEX 34. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. TEMPERATURE STEADY NEAR 21. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS LATE THIS EVENING THEN 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 22. THURSDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 27. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CITY OF HAMILTON. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 21. THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 29. HUMIDEX 38. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 20. BURLINGTON - OAKVILLE. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. HIGH 27. HUMIDEX 35. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. LOW 20. HALTON HILLS - MILTON. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H BECOMING LIGHT THIS EVENING. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 30. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. MISSISSAUGA - BRAMPTON. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 31 EXCEPT 25 ALONG THE LAKESHORE. HUMIDEX 39 EXCEPT 33 ALONG THE LAKESHORE. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 21. CALEDON. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 20. THURSDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. HIGH 29. HUMIDEX 38. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. LOW 22. VAUGHAN - RICHMOND HILL - MARKHAM. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 30. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 21. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 20. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND BECOMING SOUTHWEST 30 KM/H THEN LIGHT LATE IN THE MORNING. HIGH 30. HUMIDEX 39. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. LOW 21. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 17. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 36. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 18. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 20. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 29. HUMIDEX 38. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 20. GODERICH - BLUEWATER - SOUTHERN HURON COUNTY WINGHAM - BLYTH - NORTHERN HURON COUNTY. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 60 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. WIND BECOMING SOUTHWEST 20 KM/H AFTER MIDNIGHT. LOW 19. THURSDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 28. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H AFTER MIDNIGHT. LOW 19. STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY. TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 22. THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 31. HUMIDEX 40. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. LOW 21. LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 20. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 29. HUMIDEX 39. UV INDEX 7 OR HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTHWEST 20 BEFORE MORNING. LOW 21. KITCHENER - CAMBRIDGE - REGION OF WATERLOO GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 20. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 20. MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY. TONIGHT..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 17. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 7 OR HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 20. DUFFERIN - INNISFIL. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 19. THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING WEST 20 KM/H LATE IN THE MORNING. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE MORNING. LOW 21. SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY. TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. WIND BECOMING WEST 40 GUSTING TO 60 LATE THIS EVENING. LOW 17. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND WEST 40 KM/H GUSTING TO 60 BECOMING SOUTHWEST 20 IN THE MORNING THEN LIGHT IN THE AFTERNOON. HIGH 25. HUMIDEX 33. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H NEAR MIDNIGHT THEN INCREASING TO 40 GUSTING TO 60 BEFORE MORNING. LOW 17. BRUCE PENINSULA - SAUBLE BEACH - TOBERMORY. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF DRIZZLE EARLY THIS EVENING. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 13. THURSDAY..A MIX OF SUN AND CLOUD. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. HIGH 21. HUMIDEX 27. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 13. HANOVER - DUNDALK - SOUTHERN GREY COUNTY. TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. WIND BECOMING SOUTHWEST 20 GUSTING TO 40 AFTER MIDNIGHT. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 19. OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY. TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. WIND BECOMING SOUTHWEST 20 GUSTING TO 40 AFTER MIDNIGHT. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 28. HUMIDEX 36. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 19. BARRIE - COLLINGWOOD - HILLSDALE. TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS THIS EVENING THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 19. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 26. HUMIDEX 34. UV INDEX 6 OR HIGH. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING THEN 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM BEFORE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 18. MIDLAND - COLDWATER - ORR LAKE ORILLIA - LAGOON CITY - WASHAGO. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY NEAR MIDNIGHT WITH 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND WEST 20 KM/H BECOMING LIGHT LATE THIS EVENING. LOW 18. THURSDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING WITH RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 24. HUMIDEX 31. UV INDEX 6 OR HIGH. THURSDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY BEFORE MORNING WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM BEFORE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. BELLEVILLE - QUINTE - NORTHUMBERLAND. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. THURSDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 27. HUMIDEX 35. UV INDEX 6 OR HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. PICTON - SANDBANKS PARK NAPANEE - CONSECON. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT WITH 30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. THURSDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 27. HUMIDEX 35. UV INDEX 6 OR HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. KINGSTON - ODESSA - FRONTENAC ISLANDS. TONIGHT..SHOWERS ENDING EARLY THIS EVENING THEN PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 24. HUMIDEX 32. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 17. LINDSAY - SOUTHERN KAWARTHA LAKES. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H IN THE MORNING. HIGH 28. HUMIDEX 37. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 19. FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 25. HUMIDEX 34. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 19. PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 29. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 18. APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 26. HUMIDEX 34. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 17. STIRLING - TWEED - MADOC. TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. 30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 28. HUMIDEX 37. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING AFTER MIDNIGHT. LOW 18. TAMWORTH - SYDENHAM - SOUTH FRONTENAC. TONIGHT..SHOWERS ENDING EARLY THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. CLEARING NEAR MIDNIGHT. RISK OF A THUNDERSTORM EARLY THIS EVENING. TEMPERATURE STEADY NEAR 20. THURSDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 35. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. LOW 20. KALADAR - BANNOCKBURN - BON ECHO PARK. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING AND BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 18. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING EARLY IN THE MORNING. HIGH 28. HUMIDEX 37. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. BANCROFT - HASTINGS HIGHLANDS - DENBIGH. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING AND BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING EARLY IN THE MORNING. HIGH 26. HUMIDEX 32. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. OTHERWISE CLEAR. RISK OF A THUNDERSTORM EARLY IN THE EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13. BROCKVILLE - LEEDS AND GRENVILLE. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW 19. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 34. UV INDEX 7 OR HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. LOW 17. CITY OF OTTAWA. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW 19. THURSDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY LATE IN THE MORNING WITH 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A THUNDERSTORM IN THE AFTERNOON. HIGH 27. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING. LOW 18. GATINEAU. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY. RISK OF A THUNDERSTORM EARLY THIS EVENING. TEMPERATURE STEADY NEAR 21. THURSDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 27. HUMIDEX 36. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. CLEARING AFTER MIDNIGHT. LOW 18. PRESCOTT AND RUSSELL. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL AMOUNT 10 TO 15 MM. TEMPERATURE STEADY NEAR 21. THURSDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 35. UV INDEX 8 OR VERY HIGH. THURSDAY NIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. LOW 19. CORNWALL - MORRISBURG. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL AMOUNT 10 TO 15 MM. TEMPERATURE STEADY NEAR 21. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 25. HUMIDEX 33. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. LOW 18. SMITHS FALLS - LANARK - SHARBOT LAKE. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLEARING. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOW 18. THURSDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 35. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING. LOW 16. PORT CARLING - PORT SEVERN BRACEBRIDGE - GRAVENHURST. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 17. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23. HUMIDEX 30. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. TOWN OF PARRY SOUND - ROSSEAU - KILLBEAR PARK HUNTSVILLE - BAYSVILLE. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. TEMPERATURE STEADY NEAR 20. HUMIDEX 28. UV INDEX 7 OR HIGH. THURSDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 16. HALIBURTON. TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES OVERNIGHT. LOW 18. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. RISK OF A THUNDERSTORM EARLY IN THE MORNING. HIGH 22. HUMIDEX 30. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLEARING EARLY IN THE EVENING. FOG PATCHES DEVELOPING AFTER MIDNIGHT. LOW 15. BARRY'S BAY - KILLALOE RENFREW - ARNPRIOR - CALABOGIE. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING AND BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 18. THURSDAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING EARLY IN THE MORNING. HIGH 28. HUMIDEX 36. UV INDEX 10 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. OTHERWISE CLEAR. RISK OF A THUNDERSTORM EARLY IN THE EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 15. PETAWAWA - PEMBROKE - COBDEN. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING AND BEFORE MORNING. RISK OF A THUNDERSTORM EARLY THIS EVENING. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING EARLY IN THE MORNING. HIGH 26. HUMIDEX 35. UV INDEX 9 OR VERY HIGH. THURSDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. ALGONQUIN. TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES OVERNIGHT. LOW 17. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. RISK OF A THUNDERSTORM EARLY IN THE MORNING. HIGH 24. HUMIDEX 32. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING AFTER MIDNIGHT. LOW 11. BAYFIELD INLET - DUNCHURCH. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. LOW 17. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. SOUTH RIVER - BURK'S FALLS. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS BEFORE MORNING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING BEFORE MORNING. TEMPERATURE STEADY NEAR 18. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 29. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN 60 PERCENT CHANCE OF SHOWERS BEFORE MORNING. RISK OF A THUNDERSTORM BEFORE MORNING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 17. END