FPCN11 CWTO 200211 AAC UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 10:10 P.M. EDT FRIDAY 19 JUNE 2026 FOR TONIGHT SATURDAY AND SATURDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT SATURDAY. NEWMARKET - GEORGINA - NORTHERN YORK REGION. TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H BECOMING LIGHT LATE THIS EVENING. LOW 12. SATURDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 23. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY. LOW 11. UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION. TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 12. SATURDAY..MAINLY SUNNY. WIND NORTHWEST 20 KM/H. HIGH 24. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY. LOW 11. SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY. TONIGHT..CLEAR. WIND NORTHWEST 20 KM/H BECOMING LIGHT LATE THIS EVENING. LOW 11. SATURDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND WEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 22. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY. LOW 9. INNISFIL - NEW TECUMSETH - ANGUS. TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. LOW 11. SATURDAY..MAINLY SUNNY. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 22. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..A FEW CLOUDS. LOW 9. BARRIE - COLLINGWOOD - HILLSDALE. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 11. SATURDAY..CLEARING. WIND NORTHWEST 20 KM/H. HIGH 20. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 11. MIDLAND - COLDWATER - ORR LAKE. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 30 KM/H BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 11. SATURDAY..A MIX OF SUN AND CLOUD. CLEARING NEAR NOON. WIND WEST 30 KM/H. HIGH 20. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 11. ORILLIA - LAGOON CITY - WASHAGO. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 11. SATURDAY..MAINLY SUNNY. WIND WEST 30 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING NORTHWEST 30 LATE IN THE MORNING. HIGH 20. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND NORTHWEST 30 KM/H BECOMING LIGHT AFTER MIDNIGHT. LOW 11. KINGSTON - ODESSA - FRONTENAC ISLANDS. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SATURDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING. LOW 13. LINDSAY - SOUTHERN KAWARTHA LAKES. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 13. SATURDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H. HIGH 23. HUMIDEX 25. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM EARLY IN THE EVENING. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 12. FENELON FALLS - BALSAM LAKE PARK - NORTHERN KAWARTHA LAKES. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 30 KM/H GUSTING TO 50. LOW 13. SATURDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 23. HUMIDEX 25. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING. OTHERWISE CLEAR. RISK OF A THUNDERSTORM EARLY IN THE EVENING. WIND NORTHWEST 30 KM/H BECOMING LIGHT IN THE EVENING. LOW 12. PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY. TONIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 13. SATURDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H. HIGH 23. HUMIDEX 25. UV INDEX 8 OR VERY HIGH. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 12. APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 13. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H. HIGH 23. HUMIDEX 25. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. LOW 12. STIRLING - TWEED - MADOC. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 15. SATURDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. LOW 13. TAMWORTH - SYDENHAM - SOUTH FRONTENAC. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 30 KM/H GUSTING TO 50. LOW 15. SATURDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING. LOW 13. KALADAR - BANNOCKBURN - BON ECHO PARK. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING WEST 20 BEFORE MORNING. LOW 12. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY 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 11. BANCROFT - HASTINGS HIGHLANDS - DENBIGH. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING NORTHWEST 20 BEFORE MORNING. LOW 12. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE EVENING AND AFTER MIDNIGHT WITH RISK OF A THUNDERSTORM. LOW 11. GANANOQUE - MALLORYTOWN. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H. LOW 15. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H BECOMING LIGHT LATE IN THE MORNING. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 15. WESTPORT - CHARLESTON LAKE. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS AND RISK OF A THUNDERSTORM. LOW 15. PLEVNA - SHARBOT LAKE - WESTERN LANARK COUNTY. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING NORTHWEST 20 BEFORE MORNING. LOW 14. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE IN THE MORNING. WIND BECOMING NORTH 20 IN THE AFTERNOON. HIGH 22. HUMIDEX 25. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE EVENING. LOW 13. PORT CARLING - PORT SEVERN. TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 30 KM/H. LOW 12. SATURDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 30 KM/H. HIGH 21. UV INDEX 7 OR HIGH. SATURDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 30 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. BRACEBRIDGE - GRAVENHURST. TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING WITH RISK OF A THUNDERSTORM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. LOW 12. SATURDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H LATE IN THE MORNING. HIGH 21. UV INDEX 7 OR HIGH. SATURDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. HALIBURTON - MINDEN - SOUTHERN HALIBURTON COUNTY. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. LOW 13. SATURDAY..CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTH 20 KM/H IN THE AFTERNOON. HIGH 21. UV INDEX 5 OR MODERATE. SATURDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING WITH RISK OF A THUNDERSTORM. WIND NORTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 10. REMAINDER UNCHANGED. END