493
FPCN12 CWTO 031515
FORECASTS FOR NORTHERN ONTARIO ISSUED BY ENVIRONMENT CANADA AT
11:30 A.M. EDT THURSDAY 3 SEPTEMBER 2026 FOR TODAY AND FRIDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. EDT.
CITY OF THUNDER BAY.
TODAY..A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 29. UV INDEX 6 OR
HIGH.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW 12.
FRIDAY..CLOUDY. HIGH 22. HUMIDEX 27. UV INDEX 4 OR MODERATE.
KENORA - GRASSY NARROWS - WHITEDOG.
TODAY..A MIX OF SUN AND CLOUD. HIGH 27. HUMIDEX 30. UV INDEX 6 OR
HIGH.
TONIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS EVENING. LOW 17.
FRIDAY..OVERCAST. HIGH 24. HUMIDEX 31. UV INDEX 4 OR MODERATE.
SIOUX NARROWS - NESTOR FALLS - MORSON.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 26. HUMIDEX 29. UV INDEX 6 OR HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF
SHOWERS THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM THIS
EVENING. LOW 17.
FRIDAY..OVERCAST. HIGH 24. HUMIDEX 31. UV INDEX 4 OR MODERATE.
DRYDEN - VERMILION BAY.
TODAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. LOW 14.
FRIDAY..OVERCAST. HIGH 21. HUMIDEX 28. UV INDEX 2 OR LOW.
IGNACE - ENGLISH RIVER.
TODAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY AFTER MIDNIGHT. LOW 14.
FRIDAY..CLOUDY. HIGH 21. HUMIDEX 28. UV INDEX 4 OR MODERATE.
FORT FRANCES - EMO - RAINY RIVER.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 26. HUMIDEX 31. UV INDEX 6 OR HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF
SHOWERS LATE THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE
THIS EVENING. LOW 16.
FRIDAY..CLOUDY. HIGH 24. HUMIDEX 32. UV INDEX 4 OR MODERATE.
SEINE RIVER VILLAGE - MINE CENTRE.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 27. HUMIDEX 32. UV INDEX 6 OR HIGH.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF
SHOWERS LATE THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE
THIS EVENING. LOW 16.
FRIDAY..CLOUDY. HIGH 24. HUMIDEX 32. UV INDEX 4 OR MODERATE.
ATIKOKAN - SHEBANDOWAN - QUETICO PARK.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 26. HUMIDEX 29. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE THIS EVENING.
LOW 13.
FRIDAY..CLOUDY. HIGH 22. HUMIDEX 28. UV INDEX 4 OR MODERATE.
UPSALA - RAITH.
TODAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 13.
FRIDAY..OVERCAST. HIGH 22. HUMIDEX 28. UV INDEX 4 OR MODERATE.
CLOUD BAY - DORION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 13.
FRIDAY..MAINLY CLOUDY. HIGH 20. HUMIDEX 25. UV INDEX 6 OR HIGH.
KAKABEKA FALLS - WHITEFISH LAKE - ARROW LAKE.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. HUMIDEX 28. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE THIS EVENING.
LOW 13.
FRIDAY..CLOUDY. HIGH 20. HUMIDEX 25. UV INDEX 4 OR MODERATE.
RED LAKE - WOODLAND CARIBOU PARK.
TODAY..MAINLY CLOUDY. HIGH 24. HUMIDEX 28. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 15.
FRIDAY..CLOUDY. HIGH 21. HUMIDEX 28. UV INDEX 5 OR MODERATE.
EAR FALLS - PERRAULT FALLS - WESTERN LAC SEUL.
TODAY..MAINLY CLOUDY. HIGH 24. HUMIDEX 28. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.
LOW 14.
FRIDAY..CLOUDY. HIGH 21. HUMIDEX 28. UV INDEX 4 OR MODERATE.
SIOUX LOOKOUT - EASTERN LAC SEUL.
TODAY..A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 13.
FRIDAY..CLOUDY. HIGH 20. HUMIDEX 26. UV INDEX 4 OR MODERATE.
SAVANT LAKE - STURGEON LAKE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 28. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 12.
FRIDAY..MAINLY CLOUDY. HIGH 20. HUMIDEX 26. UV INDEX 5 OR MODERATE.
GULL BAY - BLACK STURGEON LAKE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 23. HUMIDEX 26. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 10.
FRIDAY..MAINLY CLOUDY. HIGH 22. HUMIDEX 26. UV INDEX 6 OR HIGH.
BEARDMORE - JELLICOE - MACDIARMID.
TODAY..A MIX OF SUN AND CLOUD. HIGH 23. HUMIDEX 26. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 10.
FRIDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON.
HIGH 22. HUMIDEX 26. UV INDEX 6 OR HIGH.
ARMSTRONG - AUDEN - WABAKIMI PARK.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW 10.
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING.
HIGH 22. HUMIDEX 26. UV INDEX 6 OR HIGH.
GERALDTON - LONGLAC - CARAMAT.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 22.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
FOG PATCHES DEVELOPING OVERNIGHT. LOW 11.
FRIDAY..MAINLY CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 22. HUMIDEX 25. UV INDEX 5 OR MODERATE.
MANITOUWADGE - HORNEPAYNE.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
FOG PATCHES DEVELOPING OVERNIGHT. LOW 11.
FRIDAY..CLEARING. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22.
HUMIDEX 25. UV INDEX 6 OR HIGH.
NAKINA - AROLAND - PAGWA.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW 11.
FRIDAY..MAINLY CLOUDY. HIGH 22. HUMIDEX 25. UV INDEX 5 OR MODERATE.
NIPIGON - ROSSPORT.
TODAY..A MIX OF SUN AND CLOUD. HIGH 24. HUMIDEX 27. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 13.
FRIDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON.
HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
MARATHON - SCHREIBER.
TODAY..MAINLY CLOUDY. HIGH 22. HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOW 12.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 23. HUMIDEX 26. UV INDEX 6 OR
HIGH.
WAWA - PUKASKWA PARK.
TODAY..MAINLY CLOUDY. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. LOW 11.
FRIDAY..MAINLY CLOUDY. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
WHITE RIVER - DUBREUILVILLE.
TODAY..MAINLY CLOUDY. HIGH 21. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW 11.
FRIDAY..CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
SAULT STE. MARIE - ST. JOSEPH ISLAND.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 23. HUMIDEX 27. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. BECOMING CLEAR THIS EVENING. LOW 12.
FRIDAY..MAINLY SUNNY. HIGH 25. HUMIDEX 30. UV INDEX 7 OR HIGH.
SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY.
TODAY..A MIX OF SUN AND CLOUD. HIGH 22. HUMIDEX 26. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 12.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 30. UV INDEX 6 OR
HIGH.
AGAWA - LAKE SUPERIOR PARK.
TODAY..A MIX OF SUN AND CLOUD. HIGH 21. HUMIDEX 25. UV INDEX 6 OR
HIGH.
TONIGHT..PARTLY CLOUDY. LOW 12.
FRIDAY..MAINLY CLOUDY. HIGH 25. HUMIDEX 30. UV INDEX 6 OR HIGH.
KAPUSKASING - HEARST - SMOOTH ROCK FALLS.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 20. UV INDEX 4
OR MODERATE.
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 12.
FRIDAY..CLEARING. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
FRASERDALE - PLEDGER LAKE.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 20. UV INDEX 2
OR LOW.
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 11.
FRIDAY..CLEARING IN THE MORNING. HIGH 23. HUMIDEX 26. UV INDEX 6 OR
HIGH.
TIMMINS - COCHRANE - IROQUOIS FALLS.
TODAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 22. HUMIDEX 25.
UV INDEX 4 OR MODERATE.
TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 12.
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING.
HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
LITTLE ABITIBI - KESAGAMI LAKE.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 21. HUMIDEX 25.
UV INDEX 2 OR LOW.
TONIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 11.
FRIDAY..CLEARING IN THE MORNING. HIGH 22. HUMIDEX 26. UV INDEX 6 OR
HIGH.
GREATER SUDBURY AND VICINITY.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. HIGH 24. HUMIDEX 28. UV
INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. LOW 13.
FRIDAY..MAINLY CLOUDY. HIGH 24. HUMIDEX 27. UV INDEX 6 OR HIGH.
CHAPLEAU - MISSINAIBI LAKE.
TODAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 21. UV
INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
FOG PATCHES DEVELOPING OVERNIGHT. LOW 13.
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 25. UV INDEX 4
OR MODERATE.
GOGAMA - FOLEYET.
TODAY..BECOMING CLOUDY NEAR NOON WITH 30 PERCENT CHANCE OF SHOWERS
THIS AFTERNOON. HIGH 21. UV INDEX 5 OR MODERATE.
TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. FOG
PATCHES DEVELOPING OVERNIGHT. LOW 13.
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE
AFTERNOON. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX
25. UV INDEX 4 OR MODERATE.
KIRKLAND LAKE - ENGLEHART.
TODAY..BECOMING CLOUDY NEAR NOON WITH 30 PERCENT CHANCE OF SHOWERS
THIS AFTERNOON. HIGH 23. HUMIDEX 28. UV INDEX 5 OR MODERATE.
TONIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING. LOW 13.
FRIDAY..MAINLY CLOUDY. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
TEMISKAMING SHORES - TEMAGAMI.
TODAY..BECOMING CLOUDY NEAR NOON WITH 30 PERCENT CHANCE OF SHOWERS
THIS AFTERNOON. HIGH 23. HUMIDEX 28. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING.
LOW 13.
FRIDAY..CLOUDY. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE.
ELLIOT LAKE - RANGER LAKE.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. LOW 14.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 27. HUMIDEX 29. UV INDEX 7 OR
HIGH.
MANITOULIN ISLAND.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. HUMIDEX 28. UV INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. LOW 14.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 29. UV INDEX 7 OR
HIGH.
BLIND RIVER - THESSALON.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. HUMIDEX 28. UV INDEX 7 OR HIGH.
TONIGHT..A FEW CLOUDS. LOW 14.
FRIDAY..MAINLY SUNNY. HIGH 25. HUMIDEX 29. UV INDEX 7 OR HIGH.
ESPANOLA - KILLARNEY.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS LATE THIS AFTERNOON. HIGH 25. HUMIDEX 29. UV
INDEX 7 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. LOW 14.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 29. UV INDEX 7 OR
HIGH.
NORTH BAY - POWASSAN - MATTAWA.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON. HIGH 25. HUMIDEX 29. UV INDEX 6 OR HIGH.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. LOW 14.
FRIDAY..MAINLY CLOUDY. HIGH 24. HUMIDEX 27. UV INDEX 6 OR HIGH.
WEST NIPISSING - FRENCH RIVER.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE THIS
AFTERNOON. HIGH 25. HUMIDEX 29. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. LOW 14.
FRIDAY..MAINLY CLOUDY. HIGH 24. HUMIDEX 27. UV INDEX 6 OR HIGH.
END
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