FPCN11 CWTO 271339 AAA

UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL

REGION ISSUED BY ENVIRONMENT CANADA AT 9:38 A.M. EDT MONDAY 27

OCTOBER 2025 FOR TODAY AND TUESDAY.

THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.



CITY OF HAMILTON.

TODAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS OR

 DRIZZLE. HIGH 10. UV INDEX 3 OR MODERATE.

TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE

 THIS EVENING. BECOMING CLEAR OVERNIGHT. LOW PLUS 1.

TUESDAY..SUNNY. WIND BECOMING NORTHEAST 20 KM/H LATE IN THE

 AFTERNOON. HIGH 10. UV INDEX 3 OR MODERATE.



BURLINGTON - OAKVILLE.

TODAY..A MIX OF SUN AND CLOUD WITH 40 PERCENT CHANCE OF SHOWERS OR

 DRIZZLE. HIGH 11. UV INDEX 3 OR MODERATE.

TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE THIS

 EVENING. LOW PLUS 4.

TUESDAY..MAINLY SUNNY. WIND BECOMING EAST 20 KM/H LATE IN THE

 MORNING. HIGH 12. UV INDEX 3 OR MODERATE.



HALTON HILLS - MILTON.

TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS OR

 DRIZZLE LATE THIS AFTERNOON. HIGH 10. UV INDEX 3 OR MODERATE.

TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS OR DRIZZLE.

 LOW PLUS 3.

TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS OR

 DRIZZLE EARLY IN THE MORNING. CLEARING LATE IN THE MORNING. HIGH 11.

 UV INDEX 3 OR MODERATE.



KITCHENER - CAMBRIDGE - REGION OF WATERLOO.

TODAY..A MIX OF SUN AND CLOUD. HIGH 9. UV INDEX 3 OR MODERATE.

TONIGHT..CLEAR. LOW PLUS 1.

TUESDAY..SUNNY. HIGH 10. UV INDEX 3 OR MODERATE.



GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY.

TODAY..MAINLY SUNNY. HIGH 9. UV INDEX 3 OR MODERATE.

TONIGHT..CLEAR. LOW PLUS 1.

TUESDAY..SUNNY. HIGH 10. UV INDEX 3 OR MODERATE.



BANCROFT - HASTINGS HIGHLANDS - DENBIGH.

TODAY..A MIX OF SUN AND CLOUD. HIGH 9. UV INDEX 3 OR MODERATE.

TONIGHT..CLEAR. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND UP TO 15

 KM/H. LOW MINUS 6. WIND CHILL MINUS 8 OVERNIGHT.

TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15

 KM/H. HIGH 10. WIND CHILL MINUS 6 IN THE MORNING. UV INDEX 3 OR

 MODERATE.



BARRY'S BAY - KILLALOE.

TODAY..MAINLY CLOUDY. HIGH 8. UV INDEX 2 OR LOW.

TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. FOG PATCHES

 DEVELOPING AFTER MIDNIGHT. LOW MINUS 5.

TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 10. UV

 INDEX 3 OR MODERATE.



RENFREW - ARNPRIOR - CALABOGIE.

TODAY..MAINLY CLOUDY. HIGH 8. UV INDEX 2 OR LOW.

TONIGHT..PARTLY CLOUDY. BECOMING CLEAR LATE THIS EVENING. FOG PATCHES

 DEVELOPING AFTER MIDNIGHT. LOW MINUS 3.

TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 10. UV

 INDEX 3 OR MODERATE.



PETAWAWA - PEMBROKE - COBDEN.

TODAY..MAINLY CLOUDY. HIGH 8. UV INDEX 2 OR LOW.

TONIGHT..PARTLY CLOUDY. BECOMING CLEAR LATE THIS EVENING. FOG PATCHES

 DEVELOPING AFTER MIDNIGHT. LOW MINUS 5.

TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 10. UV

 INDEX 3 OR MODERATE.



DEEP RIVER - WHITNEY - EASTERN ALGONQUIN PARK.

TODAY..A MIX OF SUN AND CLOUD. HIGH 7. UV INDEX 2 OR LOW.

TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. FOG PATCHES

 DEVELOPING AFTER MIDNIGHT. LOW MINUS 7.

TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15

 KM/H. HIGH 9. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR

 MODERATE.



REMAINDER UNCHANGED.



END