888  
FPCN11 CWTO 152039 AAA  
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL  
REGION ISSUED BY ENVIRONMENT CANADA AT 4:38 P.M. EDT TUESDAY 15  
SEPTEMBER 2026 FOR TONIGHT WEDNESDAY AND WEDNESDAY NIGHT.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT  
WEDNESDAY.  
 
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.  
TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A  
THUNDERSTORM. WIND SOUTHWEST 20 KM/H. LOW 18.  
WEDNESDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING.  
HIGH 26. HUMIDEX 31. UV INDEX 5 OR MODERATE.  
WEDNESDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.  
LOW 16.  
 
BRANTFORD - COUNTY OF BRANT.  
TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A  
THUNDERSTORM. WIND SOUTHWEST 20 KM/H. LOW 18.  
WEDNESDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING.  
HIGH 26. HUMIDEX 31. UV INDEX 5 OR MODERATE.  
WEDNESDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.  
LOW 16.  
 
CITY OF HAMILTON.  
TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS AND RISK OF A  
THUNDERSTORM. WIND SOUTH 20 KM/H BECOMING LIGHT THIS EVENING.  
LOW 19.  
WEDNESDAY..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE MORNING.  
HIGH 26. HUMIDEX 33. UV INDEX 5 OR MODERATE.  
WEDNESDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS  
OVERNIGHT. LOW 16.  
 
GODERICH - BLUEWATER - SOUTHERN HURON COUNTY.  
TONIGHT..A FEW SHOWERS ENDING EARLY THIS EVENING THEN CLOUDY WITH  
30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING.  
FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTH 30 KM/H BECOMING LIGHT  
THIS EVENING. LOW 16.  
WEDNESDAY..CLEARING IN THE MORNING. FOG PATCHES DISSIPATING IN THE  
MORNING. HIGH 23. HUMIDEX 29. UV INDEX 6 OR HIGH.  
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 10.  
 
WINGHAM - BLYTH - NORTHERN HURON COUNTY.  
TONIGHT..A FEW SHOWERS ENDING EARLY THIS EVENING THEN CLOUDY WITH  
30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING.  
FOG PATCHES DEVELOPING OVERNIGHT. WIND SOUTH 30 KM/H BECOMING LIGHT  
THIS EVENING. LOW 16.  
WEDNESDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE  
MORNING. HIGH 23. HUMIDEX 29. UV INDEX 6 OR HIGH.  
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 10.  
 
REMAINDER UNCHANGED.  
 
END  
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