658
FPCN12 CWTO 051945
FORECASTS FOR NORTHERN ONTARIO ISSUED BY ENVIRONMENT CANADA AT
4:00 P.M. EDT SATURDAY 5 SEPTEMBER 2026 FOR TONIGHT SUNDAY AND SUNDAY
NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:30 A.M. EDT SUNDAY.
CITY OF THUNDER BAY.
TONIGHT..A FEW CLOUDS. LOW 9.
SUNDAY..SUNNY. HIGH 23. HUMIDEX 28. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 15.
KENORA - GRASSY NARROWS - WHITEDOG.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 17.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 22. HUMIDEX 29. UV
INDEX 6 OR HIGH.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND RISK OF A
THUNDERSTORM. LOW 18.
SIOUX NARROWS - NESTOR FALLS - MORSON.
TONIGHT..BECOMING PARTLY CLOUDY THIS EVENING. 30 PERCENT CHANCE OF
SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOW 17.
SUNDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H
LATE IN THE AFTERNOON. HIGH 23. HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND SOUTH 20 KM/H BECOMING WEST 40 GUSTING
TO 60 THEN SOUTHEAST 20 NEAR MIDNIGHT. LOW 18.
DRYDEN - VERMILION BAY.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 15.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 25. HUMIDEX 30. UV
INDEX 6 OR HIGH.
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40
NEAR MIDNIGHT THEN LIGHT AFTER MIDNIGHT. LOW 17.
IGNACE - ENGLISH RIVER.
TONIGHT..PARTLY CLOUDY. LOW 13.
SUNDAY..MAINLY SUNNY. HIGH 25. HUMIDEX 31. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 16.
FORT FRANCES - EMO - RAINY RIVER.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 17.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING SOUTHEAST
20 KM/H LATE IN THE AFTERNOON. HIGH 24. HUMIDEX 32. UV INDEX 7 OR
HIGH.
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND SOUTHEAST 30 KM/H GUSTING TO 50.
LOW 19.
SEINE RIVER VILLAGE - MINE CENTRE.
TONIGHT..PARTLY CLOUDY. LOW 13.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 25. HUMIDEX 32. UV INDEX 7 OR
HIGH.
SUNDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT
WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 30 KM/H GUSTING TO
50 NEAR MIDNIGHT THEN SOUTHEAST 20. LOW 17.
ATIKOKAN - SHEBANDOWAN - QUETICO PARK.
TONIGHT..MAINLY CLOUDY. CLEARING AFTER MIDNIGHT. LOW 11.
SUNDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE MORNING.
HIGH 26. HUMIDEX 32. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS
OVERNIGHT WITH RISK OF A THUNDERSTORM. LOW 16.
UPSALA - RAITH.
TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. LOW 10.
SUNDAY..CLEARING IN THE MORNING. HIGH 25. HUMIDEX 30. UV INDEX 6 OR
HIGH.
SUNDAY NIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT THEN
60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM
OVERNIGHT. LOW 15.
CLOUD BAY - DORION.
TONIGHT..CLEAR. LOW 11.
SUNDAY..SUNNY. HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 14.
KAKABEKA FALLS - WHITEFISH LAKE - ARROW LAKE.
TONIGHT..PARTLY CLOUDY. LOW 9.
SUNDAY..SUNNY. HIGH 25. HUMIDEX 30. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. LOW 15.
RED LAKE - WOODLAND CARIBOU PARK.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 14.
SUNDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH
30 PERCENT CHANCE OF SHOWERS LATE IN THE AFTERNOON. RISK OF A
THUNDERSTORM LATE IN THE AFTERNOON. HIGH 23. HUMIDEX 28. UV INDEX 6
OR HIGH.
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND BECOMING EAST 20 KM/H NEAR MIDNIGHT.
LOW 14.
EAR FALLS - PERRAULT FALLS - WESTERN LAC SEUL.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 24. HUMIDEX 29. UV
INDEX 6 OR HIGH.
SUNDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. LOW 14.
SIOUX LOOKOUT - EASTERN LAC SEUL.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF A THUNDERSTORM. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS LATE IN
THE AFTERNOON WITH RISK OF A THUNDERSTORM. HIGH 26. HUMIDEX 31. UV
INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. WIND BECOMING EAST 20 KM/H AFTER MIDNIGHT.
LOW 15.
SAVANT LAKE - STURGEON LAKE.
TONIGHT..PARTLY CLOUDY. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 26. HUMIDEX 31. UV INDEX 6 OR
HIGH.
SUNDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS LATE IN THE EVENING
THEN 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. RISK OF A THUNDERSTORM
OVERNIGHT. WIND BECOMING SOUTHEAST 20 KM/H BEFORE MORNING. LOW 15.
GULL BAY - BLACK STURGEON LAKE.
TONIGHT..PARTLY CLOUDY. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 27. HUMIDEX 30. UV INDEX 6 OR
HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT
WITH RISK OF A THUNDERSTORM. LOW 15.
BEARDMORE - JELLICOE - MACDIARMID.
TONIGHT..CLEAR. LOW 11.
SUNDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING.
HIGH 27. HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 14.
ARMSTRONG - AUDEN - WABAKIMI PARK.
TONIGHT..PARTLY CLOUDY. LOW 9.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 27. HUMIDEX 29. UV INDEX 6 OR
HIGH.
SUNDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT
WITH RISK OF A THUNDERSTORM. LOW 12.
GERALDTON - LONGLAC - CARAMAT.
TONIGHT..CLEAR. LOW 10.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 27. HUMIDEX 29. UV INDEX 6 OR
HIGH.
SUNDAY NIGHT..MAINLY CLOUDY. LOW 13.
MANITOUWADGE - HORNEPAYNE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 8.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 27.
HUMIDEX 30. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..PARTLY CLOUDY. BECOMING CLOUDY IN THE EVENING. LOW 11.
NAKINA - AROLAND - PAGWA.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 8.
SUNDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 27. HUMIDEX 30. UV INDEX 6
OR HIGH.
SUNDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH
RISK OF THUNDERSTORMS. LOW 11.
NIPIGON - ROSSPORT.
TONIGHT..CLEAR. LOW 12.
SUNDAY..SUNNY. HIGH 24. HUMIDEX 27. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 14.
MARATHON - SCHREIBER.
TONIGHT..CLEAR. LOW 9.
SUNDAY..SUNNY. HIGH 22. HUMIDEX 25. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 12.
WAWA - PUKASKWA PARK.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 26.
HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 11.
WHITE RIVER - DUBREUILVILLE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 26.
HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. LOW 11.
SAULT STE. MARIE - ST. JOSEPH ISLAND.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 10.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 25.
HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 10.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 25.
HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
AGAWA - LAKE SUPERIOR PARK.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 10.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 25.
HUMIDEX 29. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
KAPUSKASING - HEARST - SMOOTH ROCK FALLS.
TONIGHT..CLEARING EARLY THIS EVENING. FOG PATCHES DEVELOPING NEAR
MIDNIGHT. LOW 8.
SUNDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 24. HUMIDEX 27. UV INDEX 5
OR MODERATE.
SUNDAY NIGHT..CLEAR. INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 12.
FRASERDALE - PLEDGER LAKE.
TONIGHT..CLEARING EARLY THIS EVENING. FOG PATCHES DEVELOPING NEAR
MIDNIGHT. LOW 8.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 24. HUMIDEX 27. UV INDEX 5 OR MODERATE.
SUNDAY NIGHT..INCREASING CLOUDINESS LATE IN THE EVENING. WIND
BECOMING NORTHEAST 20 KM/H AFTER MIDNIGHT. LOW 12.
TIMMINS - COCHRANE - IROQUOIS FALLS.
TONIGHT..MAINLY CLOUDY. CLEARING LATE THIS EVENING. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 8.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 26. HUMIDEX 28. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
LITTLE ABITIBI - KESAGAMI LAKE.
TONIGHT..CLEARING. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 12.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. INCREASING CLOUDINESS AFTER MIDNIGHT. WIND
BECOMING NORTHEAST 20 KM/H BEFORE MORNING. LOW 10.
GREATER SUDBURY AND VICINITY.
TONIGHT..CLEARING. FOG PATCHES DEVELOPING NEAR MIDNIGHT. WIND
NORTHEAST 20 KM/H BECOMING LIGHT EARLY THIS EVENING. LOW 11.
SUNDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 24. HUMIDEX 26. UV INDEX 6
OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
CHAPLEAU - MISSINAIBI LAKE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 23.
HUMIDEX 26. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
GOGAMA - FOLEYET.
TONIGHT..MAINLY CLOUDY. CLEARING AFTER MIDNIGHT. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 9.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 23. HUMIDEX 26. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
KIRKLAND LAKE - ENGLEHART.
TONIGHT..CLOUDY. CLEARING LATE THIS EVENING. FOG PATCHES DEVELOPING
NEAR MIDNIGHT. LOW 11.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 23. HUMIDEX 25. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEARING LATE IN THE EVENING. FOG PATCHES DEVELOPING
NEAR MIDNIGHT. LOW 10.
TEMISKAMING SHORES - TEMAGAMI.
TONIGHT..MAINLY CLOUDY. CLEARING AFTER MIDNIGHT. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 11.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 23. HUMIDEX 25. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 10.
ELLIOT LAKE - RANGER LAKE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 25. HUMIDEX 27. UV INDEX 7 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
MANITOULIN ISLAND.
TONIGHT..A FEW CLOUDS. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 12.
SUNDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 24. HUMIDEX 27. UV INDEX 7 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
BLIND RIVER - THESSALON.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 12.
SUNDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 24.
HUMIDEX 27. UV INDEX 7 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
ESPANOLA - KILLARNEY.
TONIGHT..MAINLY CLOUDY. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 14.
SUNDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 22. HUMIDEX 27. UV INDEX 7
OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 16.
NORTH BAY - POWASSAN - MATTAWA.
TONIGHT..CLOUDY. CLEARING LATE THIS EVENING. FOG PATCHES DEVELOPING
NEAR MIDNIGHT. LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 23. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
WEST NIPISSING - FRENCH RIVER.
TONIGHT..CLOUDY. CLEARING NEAR MIDNIGHT. FOG PATCHES DEVELOPING NEAR
MIDNIGHT. WIND NORTH 20 KM/H BECOMING LIGHT THIS EVENING. LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 23. UV INDEX 6 OR HIGH.
SUNDAY NIGHT..CLEAR. FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 11.
END
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