175
FPCN11 CWNT 172130
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT
THURSDAY 17 SEPTEMBER 2026 FOR TONIGHT FRIDAY AND FRIDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT FRIDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TONIGHT..PARTLY CLOUDY. LOW PLUS 3.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 13. UV INDEX 2 OR LOW.
FRIDAY NIGHT..A FEW CLOUDS. LOW PLUS 5.
LUTSEL K'E REGION.
TONIGHT..PERIODS OF RAIN ENDING LATE THIS EVENING THEN PARTLY CLOUDY.
WIND BECOMING NORTHWEST 20 KM/H THIS EVENING. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. WIND WEST 20 KM/H. HIGH 11. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEARING IN THE EVENING. LOW PLUS 3.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..CLOUDY. BECOMING PARTLY CLOUDY THIS EVENING. WIND NORTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 13. UV INDEX 2 OR LOW.
FRIDAY NIGHT..A FEW CLOUDS. LOW PLUS 4.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW PLUS 4.
FRIDAY..MAINLY SUNNY. HIGH 16. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. LOW PLUS 5.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 3.
FRIDAY..MAINLY SUNNY. FOG PATCHES DISSIPATING IN THE MORNING.
HIGH 16. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. LOW PLUS 3.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. FOG PATCHES
DEVELOPING OVERNIGHT. LOW PLUS 3.
FRIDAY..A MIX OF SUN AND CLOUD. CLEARING EARLY IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 14. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOW 6.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..A FEW CLOUDS. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 2.
FRIDAY..CLEARING LATE IN THE MORNING. FOG PATCHES DISSIPATING IN THE
MORNING. HIGH 16. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW
PLUS 4.
YELLOWKNIFE REGION.
TONIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW 6.
FRIDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING.
CLEARING LATE IN THE AFTERNOON. HIGH 11. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. WIND BECOMING SOUTHEAST 20 KM/H OVERNIGHT. LOW
PLUS 5.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE THIS
EVENING AND OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGH 11. UV INDEX 2 OR LOW.
FRIDAY NIGHT..A FEW CLOUDS. WIND BECOMING SOUTHEAST 20 KM/H NEAR
MIDNIGHT. LOW PLUS 5.
WRIGLEY REGION.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. FOG PATCHES
DEVELOPING OVERNIGHT. LOW PLUS 3.
FRIDAY..A MIX OF SUN AND CLOUD. CLEARING EARLY IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 13. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW
PLUS 5.
NORMAN WELLS - TULITA REGION.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. CLEARING EARLY IN THE AFTERNOON. FOG
PATCHES DISSIPATING IN THE MORNING. HIGH 12. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY IN THE EVENING. LOW
PLUS 5.
FORT GOOD HOPE REGION.
TONIGHT..MAINLY CLOUDY. WIND WEST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 13. UV INDEX 1 OR LOW.
FRIDAY NIGHT..A FEW CLOUDS. LOW PLUS 4.
DELINE.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW PLUS 2.
FRIDAY..A MIX OF SUN AND CLOUD. CLEARING LATE IN THE AFTERNOON.
HIGH 12. UV INDEX 2 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND BECOMING
SOUTHEAST 20 KM/H OVERNIGHT. LOW PLUS 4.
COLVILLE LAKE.
TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS OVERNIGHT. LOW
PLUS 2.
FRIDAY..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 10. UV
INDEX 1 OR LOW.
FRIDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. WIND
SOUTHWEST 20 KM/H BECOMING SOUTHEAST 20 NEAR MIDNIGHT. LOW PLUS 5.
END
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