538
FPCN11 CWTO 012037 AAC
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 4:35 P.M. EDT WEDNESDAY 1 JULY
2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT THURSDAY.
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
THEN CLEAR. RISK OF A THUNDERSTORM THIS EVENING. WIND SOUTHWEST
20 KM/H GUSTING TO 40. LOW 23.
THURSDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND SOUTHWEST 20 KM/H GUSTING TO 40.
HIGH 33. HUMIDEX 43. UV INDEX 10 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING.
LOW 23.
SIMCOE - DELHI - NORFOLK.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT LATE THIS EVENING.
LOW 23.
THURSDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H
GUSTING TO 40 IN THE MORNING THEN LIGHT LATE IN THE AFTERNOON.
HIGH 33. HUMIDEX 43. UV INDEX 10 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING AND RISK OF A THUNDERSTORM. CLEARING LATE IN THE
EVENING. LOW 23.
DUNNVILLE - CALEDONIA - HALDIMAND.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT EARLY THIS EVENING.
LOW 23.
THURSDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H
GUSTING TO 40 IN THE MORNING. HIGH 33. HUMIDEX 43. UV INDEX 10 OR
VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING.
LOW 23.
BRANTFORD - COUNTY OF BRANT.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
SOUTHWEST 20 KM/H GUSTING TO 40. LOW 23.
THURSDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND SOUTHWEST 30 KM/H GUSTING TO 50
BECOMING LIGHT LATE IN THE AFTERNOON. HIGH 33. HUMIDEX 42. UV
INDEX 10 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING.
LOW 23.
NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING LATE THIS EVENING. WIND
SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT EARLY THIS EVENING.
LOW 24.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING SOUTHWEST
30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 33. HUMIDEX 43. UV
INDEX 10 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING. WIND
WEST 20 KM/H BECOMING LIGHT EARLY IN THE EVENING. LOW 23.
ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
THEN CLEAR. RISK OF A THUNDERSTORM THIS EVENING. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 24.
THURSDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON.
RISK OF A THUNDERSTORM IN THE AFTERNOON. WIND BECOMING SOUTHWEST
30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 34. HUMIDEX 44. UV
INDEX 9 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING. WIND
WEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 23.
CITY OF HAMILTON.
TONIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS EVENING
THEN CLEAR. RISK OF A THUNDERSTORM THIS EVENING. WIND WEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 24.
THURSDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A
THUNDERSTORM IN THE AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H
GUSTING TO 40 IN THE MORNING THEN LIGHT LATE IN THE AFTERNOON.
HIGH 34. HUMIDEX 43. UV INDEX 10 OR VERY HIGH.
THURSDAY NIGHT..PARTLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN
THE EVENING THEN CLEAR. RISK OF A THUNDERSTORM IN THE EVENING.
LOW 23.
REMAINDER UNCHANGED.
END
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