FPCN11 CWTO 152311 AAC UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 7:10 P.M. EDT WEDNESDAY 15 APRIL 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..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 11. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 20. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 10. WINDSOR - LEAMINGTON - ESSEX COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF THUNDERSTORMS THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 14. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 20. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. CHATHAM-KENT - RONDEAU PARK. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF THUNDERSTORMS THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 14. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 19. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. SARNIA - PETROLIA - WESTERN LAMBTON COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF THUNDERSTORMS THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 18. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 7. WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF THUNDERSTORMS THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 16. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 18. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 8. RODNEY - SHEDDEN - WESTERN ELGIN COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF A THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 5 TO 10 MM. LOW 13. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 20. HUMIDEX 25. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF A THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 5 TO 10 MM. LOW 13. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 20. HUMIDEX 25. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF A THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 5 TO 10 MM. LOW 14. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 20. HUMIDEX 26. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 9. LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING AND AFTER MIDNIGHT. SHOWERS OR A FEW THUNDERSTORMS BEGINNING AFTER MIDNIGHT. RISK OF A THUNDERSTORM THIS EVENING AND AFTER MIDNIGHT. LOCAL AMOUNT 5 TO 10 MM. LOW 14. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 20. HUMIDEX 26. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. SIMCOE - DELHI - NORFOLK. TONIGHT..A FEW SHOWERS OR THUNDERSTORMS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING WEST 20 GUSTING TO 40 LATE IN THE MORNING. HIGH 20 EXCEPT 12 NEAR LAKE ERIE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. DUNNVILLE - CALEDONIA - HALDIMAND. TONIGHT..SHOWERS OR THUNDERSTORMS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF THUNDERSTORMS OVERNIGHT. FOG PATCHES DEVELOPING THIS EVENING. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 13. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTH 20 KM/H GUSTING TO 50 BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 21 EXCEPT 12 NEAR LAKE ERIE. HUMIDEX 25. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. WOODSTOCK - TILLSONBURG - OXFORD COUNTY. TONIGHT..A FEW SHOWERS OR THUNDERSTORMS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING WEST 20 GUSTING TO 40 LATE IN THE MORNING. HIGH 21. HUMIDEX 26. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. BRANTFORD - COUNTY OF BRANT. TONIGHT..A FEW SHOWERS OR THUNDERSTORMS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. LOCAL AMOUNT 10 TO 20 MM. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS OR THUNDERSTORMS. LOCAL AMOUNT 5 TO 10 MM. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING WEST 20 GUSTING TO 40 LATE IN THE MORNING. HIGH 21. HUMIDEX 26. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TONIGHT..SHOWERS OR THUNDERSTORMS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF THUNDERSTORMS OVERNIGHT. FOG PATCHES DEVELOPING THIS EVENING. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 9. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTH 20 KM/H GUSTING TO 50 BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 21 EXCEPT 12 NEAR LAKE ERIE. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TONIGHT..SHOWERS OR THUNDERSTORMS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF THUNDERSTORMS OVERNIGHT. FOG PATCHES DEVELOPING THIS EVENING. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 9. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTH 20 KM/H GUSTING TO 50 BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 22. HUMIDEX 26. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. CITY OF HAMILTON. TONIGHT..SHOWERS OR THUNDERSTORMS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF THUNDERSTORMS OVERNIGHT. FOG PATCHES DEVELOPING THIS EVENING. WIND BECOMING SOUTH 20 KM/H BEFORE MORNING. LOW 13. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTH 20 KM/H GUSTING TO 50 BECOMING WEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 21. HUMIDEX 26. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. BURLINGTON - OAKVILLE. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 11. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 20. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 8. HALTON HILLS - MILTON. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 12. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 20. HUMIDEX 25. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 8. MISSISSAUGA - BRAMPTON. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 11. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 20. HUMIDEX 25. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 8. CALEDON. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 9. VAUGHAN - RICHMOND HILL - MARKHAM. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 11. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..SHOWERS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 12. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING LATE IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TONIGHT..SHOWERS ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 10. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 10. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..SHOWERS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 12. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING LATE IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. GODERICH - BLUEWATER - SOUTHERN HURON COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 13. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING THEN LIGHT IN THE AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. WINGHAM - BLYTH - NORTHERN HURON COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 13. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING THEN LIGHT IN THE AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING THIS EVENING AND DISSIPATING AFTER MIDNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING THIS EVENING AND DISSIPATING AFTER MIDNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE MORNING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. KITCHENER - CAMBRIDGE - REGION OF WATERLOO. TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING THIS EVENING AND DISSIPATING AFTER MIDNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE MORNING. LOW 14. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H GUSTING TO 40. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 14. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 14. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. INNISFIL - NEW TECUMSETH - ANGUS. TONIGHT..SHOWERS ENDING THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING AND OVERNIGHT. FOG PATCHES DEVELOPING LATE THIS EVENING. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. FOG PATCHES DISSIPATING IN THE MORNING. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 19. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 8. SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY. TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. LOW 12. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 16. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW PLUS 5. BRUCE PENINSULA - SAUBLE BEACH - TOBERMORY. TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. LOW 7. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 13. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW PLUS 5. HANOVER - DUNDALK - SOUTHERN GREY COUNTY. TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. LOW 15. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 7. OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY. TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. LOW 11. THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. LOCAL AMOUNT 10 TO 15 MM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 20. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING. LOW 6. REMAINDER UNCHANGED. END