FPCN11 CWTO 052123 AAC

UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL

REGION ISSUED BY ENVIRONMENT CANADA AT 5:22 P.M. EDT TUESDAY 5 MAY

2026 FOR TONIGHT WEDNESDAY AND WEDNESDAY NIGHT.

THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT

WEDNESDAY.



WINDSOR - LEAMINGTON - ESSEX COUNTY.

TONIGHT..PERIODS OF RAIN. AMOUNT 10 TO 15 MM. WIND WEST 20 KM/H

 GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 7.

WEDNESDAY..PERIODS OF RAIN ENDING IN THE MORNING THEN A MIX OF SUN

 AND CLOUD. WIND BECOMING NORTH 30 KM/H LATE IN THE MORNING. HIGH 14.

 UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..CLEARING NEAR MIDNIGHT. WIND WEST 20 KM/H BECOMING

 LIGHT AFTER MIDNIGHT. LOW PLUS 3 WITH RISK OF FROST.



CHATHAM-KENT - RONDEAU PARK.

TONIGHT..PERIODS OF RAIN. AMOUNT 10 TO 15 MM. LOW 6.

WEDNESDAY..PERIODS OF RAIN ENDING IN THE MORNING THEN A MIX OF SUN

 AND CLOUD. WIND BECOMING NORTH 30 KM/H LATE IN THE MORNING. HIGH 13.

 UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..CLEARING NEAR MIDNIGHT. WIND WEST 20 KM/H BECOMING

 LIGHT AFTER MIDNIGHT. LOW PLUS 3 WITH RISK OF FROST.



SARNIA - PETROLIA - WESTERN LAMBTON COUNTY.

TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS

 EVENING AND OVERNIGHT. LOW 7.

WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY

 IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON.

 HIGH 12. UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. LOW PLUS 2

 WITH RISK OF FROST.



WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY.

TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS

 EVENING AND OVERNIGHT. LOW 6.

WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY

 IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON.

 HIGH 12. UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. LOW PLUS 2

 WITH RISK OF FROST.



RODNEY - SHEDDEN - WESTERN ELGIN COUNTY.

TONIGHT..PERIODS OF RAIN. LOW 7.

WEDNESDAY..PERIODS OF RAIN ENDING IN THE MORNING THEN MAINLY CLOUDY.

 HIGH 12. UV INDEX 5 OR MODERATE.

WEDNESDAY NIGHT..CLEARING NEAR MIDNIGHT. LOW PLUS 3 WITH RISK OF

 FROST.



ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.

TONIGHT..PERIODS OF RAIN. LOW 7.

WEDNESDAY..PERIODS OF RAIN ENDING IN THE MORNING THEN MAINLY CLOUDY.

 HIGH 12. UV INDEX 5 OR MODERATE.

WEDNESDAY NIGHT..CLEARING NEAR MIDNIGHT. LOW PLUS 2 WITH RISK OF

 FROST.



STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY.

TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS

 EVENING AND OVERNIGHT. LOW 6.

WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY

 IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON.

 HIGH 12. UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. LOW PLUS 2

 WITH RISK OF FROST.



LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY.

TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT.

 LOW 6.

WEDNESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY

 IN THE MORNING. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON.

 HIGH 12. UV INDEX 6 OR HIGH.

WEDNESDAY NIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. LOW PLUS 2

 WITH RISK OF FROST.



REMAINDER UNCHANGED.



END