005
FPCN11 CWTO 131244 AAB
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 8:43 A.M. EDT SATURDAY 13
SEPTEMBER 2025 FOR TODAY AND SUNDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.
NEWMARKET - GEORGINA - NORTHERN YORK REGION.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO
30 PERCENT CHANCE OF SHOWERS NEAR NOON. HIGH 24. HUMIDEX 27. UV
INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO
30 PERCENT CHANCE OF SHOWERS NEAR NOON. HIGH 24. HUMIDEX 27. UV
INDEX 5 OR MODERATE.
TONIGHT..CLEARING. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
INNISFIL - NEW TECUMSETH - ANGUS.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS CHANGING TO
30 PERCENT CHANCE OF SHOWERS NEAR NOON. HIGH 24. HUMIDEX 27. UV
INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
ORILLIA - LAGOON CITY - WASHAGO.
TODAY..MAINLY CLOUDY. 70 PERCENT CHANCE OF SHOWERS THIS MORNING THEN
30 PERCENT CHANCE OF SHOWERS EARLY THIS AFTERNOON. CLEARING THIS
AFTERNOON. HIGH 24. HUMIDEX 27. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. 40 PERCENT CHANCE OF SHOWERS EARLY IN
THE MORNING. HIGH 22. UV INDEX 6 OR HIGH.
STIRLING - TWEED - MADOC.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
TAMWORTH - SYDENHAM - SOUTH FRONTENAC.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
SUNDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. FOG PATCHES
DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
KALADAR - BANNOCKBURN - BON ECHO PARK.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
BANCROFT - HASTINGS HIGHLANDS - DENBIGH.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 10.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE MORNING. CLEARING IN THE AFTERNOON. HIGH 20. UV INDEX 6 OR HIGH.
WESTPORT - CHARLESTON LAKE.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
SUNDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6
OR HIGH.
PLEVNA - SHARBOT LAKE - WESTERN LANARK COUNTY.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 4 OR MODERATE.
TONIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING
THEN PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 25. UV INDEX 6
OR HIGH.
SMITHS FALLS - PERTH - EASTERN LANARK COUNTY.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING LATE THIS EVENING. FOG PATCHES DEVELOPING
OVERNIGHT. LOW 13.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
HALIBURTON - MINDEN - SOUTHERN HALIBURTON COUNTY.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 10.
SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS
EARLY IN THE MORNING. BECOMING SUNNY IN THE AFTERNOON. HIGH 20. UV
INDEX 6 OR HIGH.
OXTONGUE LAKE - FORT IRWIN - NORTHERN HALIBURTON COUNTY.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 10.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE MORNING. CLEARING IN THE AFTERNOON. HIGH 20. UV INDEX 6 OR HIGH.
BARRY'S BAY - KILLALOE.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 10.
SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. CLEARING LATE IN THE MORNING. HIGH 20. UV INDEX 6 OR HIGH.
REMAINDER UNCHANGED.
END
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