FPCN11 CWTO 171308 AAA
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 9:08 A.M. EDT WEDNESDAY 17
JUNE 2026 FOR TODAY AND THURSDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.

CITY OF TORONTO.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
 BECOMING SOUTH 20 KM/H LATE THIS MORNING. HIGH 24. HUMIDEX 28. UV
 INDEX 8 OR VERY HIGH.
TONIGHT..CLOUDY. SHOWERS BEGINNING THIS EVENING. RISK OF A
 THUNDERSTORM. LOCAL AMOUNT 20 TO 30 MM. WIND BECOMING SOUTHEAST
 30 KM/H GUSTING TO 50 LATE THIS EVENING THEN SOUTHWEST 40 GUSTING TO
 60 BEFORE MORNING. LOW 15.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND SOUTHWEST
 40 KM/H GUSTING TO 70. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.

BURLINGTON - OAKVILLE.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
 BECOMING SOUTHWEST 20 KM/H LATE THIS MORNING. HIGH 23. HUMIDEX 26.
 UV INDEX 8 OR VERY HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A
 THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. LOCAL AMOUNT 20 TO
 30 MM. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 LATE THIS EVENING
 THEN SOUTHWEST 40 GUSTING TO 60 BEFORE MORNING. LOW 15.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND SOUTHWEST
 40 KM/H GUSTING TO 70. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.

HALTON HILLS - MILTON.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
 BECOMING SOUTHWEST 20 KM/H LATE THIS MORNING. HIGH 23. HUMIDEX 26.
 UV INDEX 8 OR VERY HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A
 THUNDERSTORM. LOCAL AMOUNT 20 TO 30 MM. WIND BECOMING SOUTHEAST
 20 KM/H GUSTING TO 40 LATE THIS EVENING THEN SOUTHWEST 40 GUSTING TO
 60 BEFORE MORNING. LOW 14.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND SOUTHWEST
 40 KM/H GUSTING TO 70. HIGH 21. UV INDEX 6 OR HIGH.

MISSISSAUGA - BRAMPTON.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
 BECOMING SOUTH 20 KM/H LATE THIS MORNING. HIGH 24. HUMIDEX 29. UV
 INDEX 8 OR VERY HIGH.
TONIGHT..CLOUDY. SHOWERS BEGINNING THIS EVENING. RISK OF A
 THUNDERSTORM. LOCAL AMOUNT 20 TO 30 MM. WIND BECOMING SOUTHEAST
 20 KM/H GUSTING TO 40 LATE THIS EVENING THEN SOUTHWEST 40 GUSTING TO
 60 BEFORE MORNING. LOW 15.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND SOUTHWEST
 40 KM/H GUSTING TO 70. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.

CALEDON.
TODAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS THIS MORNING THEN A
 MIX OF SUN AND CLOUD. WIND BECOMING SOUTHWEST 20 KM/H LATE THIS
 MORNING. HIGH 24. HUMIDEX 27. UV INDEX 8 OR VERY HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A
 THUNDERSTORM LATE THIS EVENING AND OVERNIGHT. LOCAL AMOUNT 20 TO
 30 MM. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 LATE THIS
 EVENING THEN SOUTH 40 GUSTING TO 60 BEFORE MORNING. LOW 14.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WIND SOUTH
 40 KM/H GUSTING TO 70 BECOMING WEST 40 GUSTING TO 60 IN THE
 AFTERNOON. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.

VAUGHAN - RICHMOND HILL - MARKHAM.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
 BECOMING SOUTHWEST 20 KM/H LATE THIS MORNING. HIGH 24. HUMIDEX 29.
 UV INDEX 8 OR VERY HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH SHOWERS. RISK OF A
 THUNDERSTORM. LOCAL AMOUNT 20 TO 30 MM. WIND BECOMING SOUTHEAST
 20 KM/H GUSTING TO 40 LATE THIS EVENING THEN SOUTH 40 GUSTING TO 60
 BEFORE MORNING. LOW 14.
THURSDAY..SHOWERS ENDING EARLY IN THE MORNING THEN CLOUDY WITH
 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM EARLY IN THE
 MORNING. WIND SOUTH 40 KM/H GUSTING TO 70 BECOMING WEST 40 GUSTING
 TO 60 IN THE AFTERNOON. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.

REMAINDER UNCHANGED.

END