289
FPCN11 CWTO 112223 AAB
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 6:22 P.M. EDT SUNDAY 11
OCTOBER 2026 FOR TONIGHT MONDAY AND MONDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT MONDAY.
SIMCOE - DELHI - NORFOLK.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. FOG PATCHES DEVELOPING
OVERNIGHT. LOW 11.
MONDAY..CLOUDY. CLEARING IN THE AFTERNOON. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE
MORNING. HIGH 21. HUMIDEX 25. UV INDEX 3 OR MODERATE.
MONDAY NIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
40 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND SOUTHWEST 20 KM/H.
LOW 15.
DUNNVILLE - CALEDONIA - HALDIMAND.
TONIGHT..PERIODS OF RAIN ENDING LATE THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. AMOUNT 10 TO 15 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 11.
MONDAY..CLOUDY. CLEARING IN THE AFTERNOON. FOG PATCHES DISSIPATING IN
THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE
MORNING. HIGH 21. HUMIDEX 26. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR IN THE EVENING THEN PARTLY CLOUDY WITH 40 PERCENT
CHANCE OF SHOWERS OVERNIGHT. WIND BECOMING SOUTHWEST 20 KM/H BEFORE
MORNING. LOW 17.
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OR DRIZZLE THIS EVENING
AND AFTER MIDNIGHT. FOG PATCHES DEVELOPING OVERNIGHT. LOW 10.
MONDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H LATE IN
THE MORNING. HIGH 22. HUMIDEX 28. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR IN THE EVENING THEN PARTLY CLOUDY WITH 40 PERCENT
CHANCE OF SHOWERS OVERNIGHT. LOW 16.
BRANTFORD - COUNTY OF BRANT.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. AMOUNT 10 TO 15 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 10.
MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING.
FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 22. HUMIDEX 28. UV
INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR IN THE EVENING THEN PARTLY CLOUDY WITH 40 PERCENT
CHANCE OF SHOWERS OVERNIGHT. LOW 16.
NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION.
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS OR DRIZZLE EARLY THIS
EVENING. PERIODS OF RAIN BEGINNING EARLY THIS EVENING AND ENDING
AFTER MIDNIGHT. AMOUNT 10 TO 15 MM. FOG PATCHES DEVELOPING
OVERNIGHT. LOW 14.
MONDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H GUSTING
TO 40 IN THE MORNING. HIGH 21. HUMIDEX 26. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR IN THE EVENING AND AFTER MIDNIGHT THEN PARTLY
CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND SOUTHWEST
20 KM/H. LOW 17.
ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION.
TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. AMOUNT 10 TO 15 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 14.
MONDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. FOG PATCHES
DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 20 KM/H IN THE
MORNING. HIGH 21. HUMIDEX 26. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT THEN
40 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND SOUTHWEST 20 KM/H
BECOMING LIGHT IN THE EVENING. WIND BECOMING SOUTHWEST 20 GUSTING TO
40 BEFORE MORNING. LOW 17.
CITY OF HAMILTON.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. AMOUNT 10 TO 15 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 11.
MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING.
FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST
20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 23. HUMIDEX 28. UV
INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR IN THE EVENING THEN PARTLY CLOUDY WITH 40 PERCENT
CHANCE OF SHOWERS OVERNIGHT. LOW 15.
BURLINGTON - OAKVILLE.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. AMOUNT 10 TO 15 MM. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 11.
MONDAY..MAINLY CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 22.
HUMIDEX 27. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 15.
HALTON HILLS - MILTON.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. FOG PATCHES DEVELOPING
OVERNIGHT. LOW 11.
MONDAY..MAINLY CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
BECOMING WEST 20 KM/H IN THE MORNING. HIGH 22. HUMIDEX 27. UV
INDEX 4 OR MODERATE.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 15.
MISSISSAUGA - BRAMPTON.
TONIGHT..PERIODS OF RAIN ENDING THIS EVENING THEN CLOUDY WITH
40 PERCENT CHANCE OF SHOWERS OR DRIZZLE. FOG PATCHES DEVELOPING
OVERNIGHT. LOW 10.
MONDAY..MAINLY CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
BECOMING WEST 20 KM/H LATE IN THE MORNING. HIGH 23. HUMIDEX 29. UV
INDEX 4 OR MODERATE.
MONDAY NIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 14.
REMAINDER UNCHANGED.
END
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