558  
FPCN11 CWTO 250230 AAA  
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL  
REGION ISSUED BY ENVIRONMENT CANADA AT 10:29 P.M. EDT THURSDAY 24  
SEPTEMBER 2026 FOR TONIGHT FRIDAY AND FRIDAY NIGHT.  
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT FRIDAY.  
 
CALEDON.  
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.  
FRIDAY..SUNNY. WIND BECOMING NORTHEAST 20 KM/H LATE IN THE MORNING.  
HIGH 20. UV INDEX 5 OR MODERATE.  
FRIDAY NIGHT..CLEAR. LOW 8.  
 
STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY.  
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.  
FRIDAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT IN THE  
AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.  
FRIDAY NIGHT..CLEAR. LOW PLUS 5.  
 
LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY.  
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.  
FRIDAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT IN THE  
AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.  
FRIDAY NIGHT..CLEAR. LOW PLUS 5.  
 
KITCHENER - CAMBRIDGE - REGION OF WATERLOO.  
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.  
FRIDAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT IN THE  
AFTERNOON. HIGH 20. UV INDEX 5 OR MODERATE.  
FRIDAY NIGHT..CLEAR. LOW 8.  
 
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY.  
TONIGHT..CLEAR. LOW PLUS 3 WITH RISK OF FROST.  
FRIDAY..SUNNY. WIND BECOMING NORTHEAST 20 KM/H GUSTING TO 40 IN THE  
MORNING THEN LIGHT IN THE AFTERNOON. HIGH 20. UV INDEX 5 OR  
MODERATE.  
FRIDAY NIGHT..CLEAR. LOW 8.  
 
REMAINDER UNCHANGED.  
 
END  
 
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