850
FPCN11 CWTO 171242 AAA
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 8:40 A.M. EDT FRIDAY 17 JULY
2026 FOR TODAY AND SATURDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.
PICKERING - OSHAWA - SOUTHERN DURHAM REGION.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE LATE THIS AFTERNOON.
HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. LOW 17.
SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. LOCAL SMOKE IN THE MORNING. WIND BECOMING SOUTHWEST
20 KM/H GUSTING TO 40 IN THE MORNING THEN NORTHWEST 30 GUSTING TO 50
IN THE AFTERNOON. HIGH 25. HUMIDEX 33. UV INDEX 6 OR HIGH.
UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE LATE THIS AFTERNOON.
HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. WIDESPREAD SMOKE. LOW 17.
SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. LOCAL SMOKE IN THE MORNING. WIND BECOMING SOUTHWEST
20 KM/H GUSTING TO 40 THEN NORTHWEST 30 GUSTING TO 50 NEAR NOON.
HIGH 25. HUMIDEX 33. UV INDEX 6 OR HIGH.
MIDLAND - COLDWATER - ORR LAKE.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. HIGH 26. HUMIDEX 31. UV
INDEX 9 OR VERY HIGH.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 40 PERCENT CHANCE
OF SHOWERS LATE THIS EVENING AND OVERNIGHT WITH RISK OF A
THUNDERSTORM. WIDESPREAD SMOKE. LOW 19.
SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. LOCAL SMOKE IN THE MORNING. WIND SOUTHWEST 20 KM/H
BECOMING NORTHWEST 30 GUSTING TO 50 IN THE MORNING. HIGH 22. HUMIDEX
30. UV INDEX 6 OR HIGH.
ORILLIA - LAGOON CITY - WASHAGO.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. HIGH 24. HUMIDEX 29. UV
INDEX 9 OR VERY HIGH.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 40 PERCENT CHANCE
OF SHOWERS LATE THIS EVENING AND OVERNIGHT WITH RISK OF A
THUNDERSTORM. WIDESPREAD SMOKE. LOW 19.
SATURDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. LOCAL SMOKE IN THE MORNING. WIND SOUTHWEST 20 KM/H
BECOMING NORTHWEST 30 GUSTING TO 50 IN THE MORNING. HIGH 22. HUMIDEX
30. UV INDEX 6 OR HIGH.
REMAINDER UNCHANGED.
END
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