634
FPCN11 CWNT 181646
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT
FRIDAY 18 SEPTEMBER 2026 FOR TODAY AND SATURDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS AND
RISK OF A THUNDERSTORM. HIGH 13. UV INDEX 2 OR LOW.
TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING WITH RISK OF A THUNDERSTORM. LOW PLUS 4.
SATURDAY..INCREASING CLOUDINESS NEAR NOON. WIND BECOMING SOUTHEAST
20 KM/H IN THE MORNING. HIGH 18. UV INDEX 2 OR LOW.
LUTSEL K'E REGION.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 12. UV INDEX 2 OR LOW.
TONIGHT..PARTLY CLOUDY. FOG PATCHES DEVELOPING OVERNIGHT. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON.
FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHEAST
20 KM/H IN THE AFTERNOON. HIGH 15. UV INDEX 2 OR LOW.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..A MIX OF SUN AND CLOUD. HIGH 14. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. BECOMING CLOUDY IN THE AFTERNOON.
WIND SOUTHEAST 20 KM/H. HIGH 16. UV INDEX 2 OR LOW.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS NEAR
NOON. HIGH 15. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. LOW 6.
SATURDAY..INCREASING CLOUDINESS IN THE MORNING. WIND BECOMING SOUTH
20 KM/H IN THE MORNING. HIGH 17. UV INDEX 2 OR LOW.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 17. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. LOW PLUS 5.
SATURDAY..INCREASING CLOUDINESS IN THE MORNING. HIGH 17. UV INDEX 2
OR LOW.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..MAINLY SUNNY. FOG PATCHES DISSIPATING NEAR NOON. HIGH 15. UV
INDEX 2 OR LOW.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOW 6.
SATURDAY..MAINLY CLOUDY. HIGH 18. UV INDEX 2 OR LOW.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..MAINLY SUNNY. FOG PATCHES DISSIPATING NEAR NOON. HIGH 19. UV
INDEX 2 OR LOW.
TONIGHT..INCREASING CLOUDINESS NEAR MIDNIGHT. LOW PLUS 5.
SATURDAY..MAINLY CLOUDY. CLEARING LATE IN THE AFTERNOON. HIGH 20. UV
INDEX 2 OR LOW.
YELLOWKNIFE REGION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 12. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. WIND BECOMING SOUTHEAST 20 KM/H OVERNIGHT. LOW
PLUS 5.
SATURDAY..INCREASING CLOUDINESS IN THE MORNING. WIND SOUTHEAST
30 KM/H. HIGH 13. UV INDEX 2 OR LOW.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..A MIX OF SUN AND CLOUD. HIGH 12. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. WIND BECOMING SOUTHEAST 20 KM/H OVERNIGHT. LOW
PLUS 5.
SATURDAY..INCREASING CLOUDINESS IN THE MORNING. WIND SOUTHEAST
30 KM/H. HIGH 15. UV INDEX 2 OR LOW.
WRIGLEY REGION.
TODAY..MAINLY SUNNY. FOG PATCHES DISSIPATING NEAR NOON. HIGH 15. UV
INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 18. UV INDEX 2 OR LOW.
NORMAN WELLS - TULITA REGION.
TODAY..CLEARING THIS AFTERNOON. HIGH 14. UV INDEX 2 OR LOW.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 17. UV INDEX 2 OR LOW.
FORT GOOD HOPE REGION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 16. UV INDEX 1 OR LOW.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW PLUS 3.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 17. UV INDEX 1 OR LOW.
DELINE.
TODAY..CLEARING THIS AFTERNOON. WIND BECOMING SOUTH 20 KM/H THIS
AFTERNOON. HIGH 13. UV INDEX 2 OR LOW.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND SOUTH 20 KM/H.
LOW PLUS 4.
SATURDAY..MAINLY CLOUDY. HIGH 15. UV INDEX 1 OR LOW.
COLVILLE LAKE.
TODAY..CLEARING THIS AFTERNOON. WIND SOUTHWEST 20 KM/H. HIGH 10. UV
INDEX 1 OR LOW.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND SOUTHWEST
20 KM/H BECOMING SOUTHEAST 20 NEAR MIDNIGHT. LOW PLUS 4.
SATURDAY..MAINLY CLOUDY. HIGH 12. UV INDEX 1 OR LOW.
END
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