595
FPCN11 CWTO 092303 AAA
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 7:03 P.M. EDT SUNDAY 9 AUGUST
2026 FOR TONIGHT MONDAY AND MONDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT MONDAY.
WINDSOR - LEAMINGTON - ESSEX COUNTY.
TONIGHT..MAINLY CLOUDY. SHOWERS BEGINNING THIS EVENING. RISK OF A
THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING.
LOW 21.
MONDAY..SHOWERS ENDING EARLY IN THE MORNING THEN CLOUDY. RISK OF A
THUNDERSTORM EARLY IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H
NEAR NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT
WITH RISK OF A THUNDERSTORM. LOW 18.
CHATHAM-KENT - RONDEAU PARK.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF
A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING.
LOW 21.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H
NEAR NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT
WITH RISK OF A THUNDERSTORM. LOW 17.
SARNIA - PETROLIA - WESTERN LAMBTON COUNTY.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 21.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. 40 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF
A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 16.
WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY.
TONIGHT..INCREASING CLOUDINESS THIS EVENING. 60 PERCENT CHANCE OF
SHOWERS LATE THIS EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM.
WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 21.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. 40 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF
A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 6 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 16.
RODNEY - SHEDDEN - WESTERN ELGIN COUNTY.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 17.
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 60 PERCENT CHANCE
OF SHOWERS LATE THIS EVENING AND OVERNIGHT WITH RISK OF A
THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING.
LOW 20.
MONDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 17.
STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 20.
MONDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 15.
LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY.
TONIGHT..INCREASING CLOUDINESS EARLY THIS EVENING. 60 PERCENT CHANCE
OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 6 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 15.
SIMCOE - DELHI - NORFOLK.
TONIGHT..INCREASING CLOUDINESS THIS EVENING. 60 PERCENT CHANCE OF
SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE MORNING
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR
NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT.
LOW 15.
DUNNVILLE - CALEDONIA - HALDIMAND.
TONIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H
BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE MORNING
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR
NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT.
LOW 15.
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.
TONIGHT..BECOMING CLOUDY LATE THIS EVENING WITH 60 PERCENT CHANCE OF
SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27.
HUMIDEX 35. UV INDEX 6 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING WITH RISK OF A THUNDERSTORM. LOW 14.
BRANTFORD - COUNTY OF BRANT.
TONIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND SOUTHWEST 20 KM/H
BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H
NEAR NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 14.
NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION.
TONIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT THEN 60 PERCENT
CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. WIND
SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 20.
MONDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE MORNING
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H NEAR
NOON. HIGH 27. HUMIDEX 35. UV INDEX 7 OR HIGH.
MONDAY NIGHT..PARTLY CLOUDY. LOW 19.
REMAINDER UNCHANGED.
END
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page