FPCN11 CWTO 062301 AAE UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 7:00 P.M. EDT SATURDAY 6 JUNE 2026 FOR TONIGHT SUNDAY AND SUNDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT SUNDAY. GANANOQUE - MALLORYTOWN. TONIGHT..A FEW SHOWERS ENDING LATE THIS EVENING THEN MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. AMOUNT 15 TO 25 MM. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT LATE THIS EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 BEFORE MORNING. LOW 15. SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. WIND NORTH 20 KM/H GUSTING TO 40. HIGH 24. HUMIDEX 29. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR NEAR MIDNIGHT. WIND NORTH 20 KM/H BECOMING EAST 20 AFTER MIDNIGHT. LOW 13. BROCKVILLE - PRESCOTT. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 BEFORE MORNING. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 23. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR IN THE EVENING. LOW 13. WESTPORT - CHARLESTON LAKE. TONIGHT..A FEW SHOWERS ENDING LATE THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY THIS EVENING. AMOUNT 15 TO 25 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT LATE THIS EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 BEFORE MORNING. LOW 15. SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. CLEARING IN THE AFTERNOON. WIND NORTH 20 KM/H GUSTING TO 40. HIGH 24. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..CLEAR. WIND NORTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 13. MERRICKVILLE-WOLFORD - KEMPTVILLE. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 30 KM/H GUSTING TO 50. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND NORTH 30 KM/H GUSTING TO 50. HIGH 24. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR IN THE EVENING. LOW 12. OTTAWA NORTH - KANATA - ORLEANS. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND NORTH 30 KM/H GUSTING TO 50. HIGH 24. HUMIDEX 28. UV INDEX 7 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 11. OTTAWA SOUTH - RICHMOND - METCALFE. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND NORTH 30 KM/H GUSTING TO 50. HIGH 24. HUMIDEX 28. UV INDEX 7 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 11. GATINEAU. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. LOW 15. SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 24. HUMIDEX 28. UV INDEX 7 OR HIGH. SUNDAY NIGHT..CLEAR. LOW 11. PRESCOTT AND RUSSELL. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING NORTHWEST 20 BEFORE MORNING. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND NORTH 30 KM/H GUSTING TO 50. HIGH 24. HUMIDEX 30. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..CLEAR. WIND NORTHEAST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 11. MORRISBURG - LONG SAULT. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 30 KM/H GUSTING TO 50. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING EAST 20 GUSTING TO 40 IN THE AFTERNOON. HIGH 23. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..CLEAR. LOW 11. CORNWALL - LANCASTER. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 20 KM/H GUSTING TO 40 BECOMING NORTHEAST 20 LATE IN THE MORNING THEN LIGHT IN THE AFTERNOON. HIGH 23. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..CLEAR. LOW 11. WINCHESTER - NEWINGTON. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING NORTHWEST 20 GUSTING TO 40 BEFORE MORNING. LOW 15. SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. CLEARING LATE IN THE AFTERNOON. WIND NORTH 20 KM/H GUSTING TO 40. HIGH 24. HUMIDEX 30. UV INDEX 6 OR HIGH. SUNDAY NIGHT..CLEAR. WIND NORTHEAST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 11. MAXVILLE - ALEXANDRIA. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40. LOW 15. SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 20 KM/H GUSTING TO 40 BECOMING NORTHEAST 20 GUSTING TO 40 LATE IN THE MORNING. HIGH 24. HUMIDEX 27. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..CLEARING EARLY IN THE EVENING. LOW 10. SMITHS FALLS - PERTH - EASTERN LANARK COUNTY. TONIGHT..SHOWERS ENDING THIS EVENING THEN CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 20 TO 30 MM. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. WIND BECOMING NORTHWEST 20 GUSTING TO 40 BEFORE MORNING. LOW 15. SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING AND EARLY IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 23. HUMIDEX 28. UV INDEX 8 OR VERY HIGH. SUNDAY NIGHT..PARTLY CLOUDY. BECOMING CLEAR IN THE EVENING. WIND NORTH 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 12. REMAINDER UNCHANGED. END