807
FPCN12 CWTO 211515
FORECASTS FOR NORTHERN ONTARIO ISSUED BY ENVIRONMENT CANADA AT
11:30 A.M. EDT MONDAY 21 SEPTEMBER 2026 FOR TODAY AND TUESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. EDT.
CITY OF THUNDER BAY.
TODAY..SUNNY. HIGH 15. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 17.
KENORA - GRASSY NARROWS - WHITEDOG.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3 WITH
RISK OF FROST.
TUESDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
BECOMING SOUTH 20 KM/H IN THE MORNING. HIGH 18.
SIOUX NARROWS - NESTOR FALLS - MORSON.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3 WITH
RISK OF FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H LATE IN THE MORNING. HIGH 17.
DRYDEN - VERMILION BAY.
TODAY..SUNNY. HIGH 15. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H LATE IN THE MORNING. HIGH 17.
IGNACE - ENGLISH RIVER.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 17.
FORT FRANCES - EMO - RAINY RIVER.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H IN THE AFTERNOON. HIGH 17.
SEINE RIVER VILLAGE - MINE CENTRE.
TODAY..SUNNY. HIGH 17. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 17.
ATIKOKAN - SHEBANDOWAN - QUETICO PARK.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 17.
UPSALA - RAITH.
TODAY..SUNNY. HIGH 15. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 17.
CLOUD BAY - DORION.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 17.
KAKABEKA FALLS - WHITEFISH LAKE - ARROW LAKE.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTHEAST 20 KM/H LATE IN THE MORNING. HIGH 17.
RED LAKE - WOODLAND CARIBOU PARK.
TODAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 2 WITH
RISK OF FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 18.
EAR FALLS - PERRAULT FALLS - WESTERN LAC SEUL.
TODAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 18.
SIOUX LOOKOUT - EASTERN LAC SEUL.
TODAY..SUNNY. HIGH 16. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H LATE IN THE MORNING. HIGH 18.
SAVANT LAKE - STURGEON LAKE.
TODAY..SUNNY. HIGH 17. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H LATE IN THE MORNING. HIGH 18.
GULL BAY - BLACK STURGEON LAKE.
TODAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 18.
BEARDMORE - JELLICOE - MACDIARMID.
TODAY..SUNNY. HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H IN THE AFTERNOON. HIGH 18.
ARMSTRONG - AUDEN - WABAKIMI PARK.
TODAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND UP TO 15 KM/H.
LOW MINUS 2. WIND CHILL MINUS 5 OVERNIGHT.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H LATE IN THE MORNING. HIGH 18. WIND CHILL MINUS 5 IN
THE MORNING.
GERALDTON - LONGLAC - CARAMAT.
TODAY..SUNNY. HIGH 16. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING BEFORE MORNING. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 18.
MANITOUWADGE - HORNEPAYNE.
TODAY..SUNNY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING BEFORE MORNING. WIND UP TO 15
KM/H. LOW MINUS 2. WIND CHILL MINUS 5 OVERNIGHT.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15
KM/H. HIGH 18. WIND CHILL MINUS 5 IN THE MORNING.
NAKINA - AROLAND - PAGWA.
TODAY..SUNNY. HIGH 17. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW MINUS 1.
TUESDAY..SUNNY. HIGH 19.
NIPIGON - ROSSPORT.
TODAY..SUNNY. HIGH 15. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
SOUTH 20 KM/H IN THE AFTERNOON. HIGH 16.
MARATHON - SCHREIBER.
TODAY..SUNNY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 16.
WAWA - PUKASKWA PARK.
TODAY..SUNNY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING BEFORE MORNING. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 16.
WHITE RIVER - DUBREUILVILLE.
TODAY..SUNNY. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING BEFORE MORNING. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 17.
SAULT STE. MARIE - ST. JOSEPH ISLAND.
TODAY..SUNNY. HIGH 14. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. WIND BECOMING EAST 30 KM/H THIS EVENING. LOW PLUS 1
WITH PATCHY FROST.
TUESDAY..SUNNY. WIND EAST 30 KM/H BECOMING LIGHT IN THE AFTERNOON.
HIGH 18.
SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY.
TODAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS AFTERNOON.
HIGH 14. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 19.
AGAWA - LAKE SUPERIOR PARK.
TODAY..SUNNY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING BEFORE MORNING. LOW ZERO.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 18.
KAPUSKASING - HEARST - SMOOTH ROCK FALLS.
TODAY..SUNNY. HIGH 12. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 2.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15
KM/H. HIGH 17. WIND CHILL MINUS 5 IN THE MORNING.
FRASERDALE - PLEDGER LAKE.
TODAY..SUNNY. HIGH 14. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW MINUS 2.
TUESDAY..SUNNY. WIND SOUTHWEST 20 KM/H BECOMING LIGHT LATE IN THE
MORNING. HIGH 16. WIND CHILL MINUS 8 IN THE MORNING.
TIMMINS - COCHRANE - IROQUOIS FALLS.
TODAY..SUNNY. HIGH 12. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 2.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15
KM/H. HIGH 15. WIND CHILL MINUS 4 IN THE MORNING.
LITTLE ABITIBI - KESAGAMI LAKE.
TODAY..SUNNY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW MINUS 2.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND UP TO
15 KM/H. HIGH 15. WIND CHILL MINUS 6 IN THE MORNING.
GREATER SUDBURY AND VICINITY.
TODAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTHEAST 20 KM/H LATE
THIS AFTERNOON. HIGH 12. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST
20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1 WITH PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON.
WIND BECOMING NORTHEAST 20 LATE IN THE AFTERNOON. HIGH 16.
CHAPLEAU - MISSINAIBI LAKE.
TODAY..SUNNY. HIGH 11. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 16.
GOGAMA - FOLEYET.
TODAY..CLEARING THIS AFTERNOON. HIGH 12. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 16.
KIRKLAND LAKE - ENGLEHART.
TODAY..A MIX OF SUN AND CLOUD. HIGH 12. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 2.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND UP TO 15
KM/H. HIGH 15. WIND CHILL MINUS 4 IN THE MORNING.
TEMISKAMING SHORES - TEMAGAMI.
TODAY..MAINLY CLOUDY. HIGH 12. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW MINUS 1.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND
NORTHEAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 15.
ELLIOT LAKE - RANGER LAKE.
TODAY..SUNNY. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS AFTERNOON.
HIGH 13. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 1 WITH
PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
EAST 20 KM/H IN THE MORNING. HIGH 17.
MANITOULIN ISLAND.
TODAY..CLEARING EARLY THIS AFTERNOON. WIND BECOMING NORTHEAST 30 KM/H
LATE THIS AFTERNOON. HIGH 13. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. WIND NORTHEAST 30 KM/H. LOW PLUS 4.
TUESDAY..SUNNY. WIND EAST 20 KM/H GUSTING TO 40. HIGH 17.
BLIND RIVER - THESSALON.
TODAY..SUNNY. WIND EAST 20 KM/H. HIGH 15. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. LOW PLUS 2 WITH RISK OF FROST.
TUESDAY..SUNNY. WIND EAST 20 KM/H BECOMING LIGHT IN THE AFTERNOON.
HIGH 17.
ESPANOLA - KILLARNEY.
TODAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY THIS AFTERNOON. WIND
BECOMING NORTHEAST 20 KM/H LATE THIS AFTERNOON. HIGH 13. UV INDEX 5
OR MODERATE.
TONIGHT..CLEAR. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING.
LOW PLUS 2 WITH RISK OF FROST.
TUESDAY..SUNNY. WIND BECOMING NORTHEAST 20 KM/H GUSTING TO 40 IN THE
MORNING. HIGH 17.
NORTH BAY - POWASSAN - MATTAWA.
TODAY..A MIX OF SUN AND CLOUD. WIND NORTHEAST 20 KM/H. HIGH 12. UV
INDEX 4 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST
20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1 WITH PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
EAST 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 16.
WEST NIPISSING - FRENCH RIVER.
TODAY..A MIX OF SUN AND CLOUD. WIND NORTHEAST 20 KM/H GUSTING TO 40.
HIGH 13. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. WIND NORTHEAST
20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 1 WITH PATCHY FROST.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING
NORTHEAST 20 KM/H IN THE MORNING. HIGH 16.
END
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