259
FPCN11 CWTO 160927 AAA
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 5:27 A.M. EDT SUNDAY 16 AUGUST
2026 FOR TODAY AND MONDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.
WINDSOR - LEAMINGTON - ESSEX COUNTY.
TODAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS CHANGING TO
70 PERCENT CHANCE OF SHOWERS NEAR NOON. RISK OF A THUNDERSTORM THIS
AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.
HIGH 28. HUMIDEX 35. UV INDEX 6 OR HIGH.
TONIGHT..CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO 30 PERCENT
CHANCE OF SHOWERS NEAR MIDNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS EVENING.
LOW 20.
MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. WIND
NORTHWEST 20 KM/H GUSTING TO 40. HIGH 27. HUMIDEX 32. UV INDEX 8 OR
VERY HIGH.
CHATHAM-KENT - RONDEAU PARK.
TODAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS CHANGING TO
70 PERCENT CHANCE OF SHOWERS NEAR NOON. RISK OF A THUNDERSTORM THIS
AFTERNOON. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON.
HIGH 28. HUMIDEX 35. UV INDEX 6 OR HIGH.
TONIGHT..CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO 30 PERCENT
CHANCE OF SHOWERS NEAR MIDNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS EVENING.
LOW 20.
MONDAY..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 27.
HUMIDEX 32. UV INDEX 7 OR HIGH.
SARNIA - PETROLIA - WESTERN LAMBTON COUNTY.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS THIS AFTERNOON
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING
TO 40 NEAR NOON. HIGH 27. HUMIDEX 35. UV INDEX 6 OR HIGH.
TONIGHT..CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO 30 PERCENT
CHANCE OF SHOWERS NEAR MIDNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 OVERNIGHT. LOW 19.
MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 26. HUMIDEX 31. UV
INDEX 7 OR HIGH.
WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS THIS AFTERNOON
WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING
TO 40 NEAR NOON. HIGH 27. HUMIDEX 35. UV INDEX 6 OR HIGH.
TONIGHT..CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO 30 PERCENT
CHANCE OF SHOWERS NEAR MIDNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 OVERNIGHT. LOW 19.
MONDAY..MAINLY CLOUDY. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 26.
HUMIDEX 31. UV INDEX 7 OR HIGH.
REMAINDER UNCHANGED.
END
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