241
FPCN51 CWNT 152124
EXTENDED FORECASTS FROM WEDNESDAY 17 SEPTEMBER TO SUNDAY 21 SEPTEMBER
FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST
TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 3:30 P.M. MDT MONDAY 15
SEPTEMBER 2025.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:30 A.M. MDT TUESDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 22.
THURSDAY NIGHT..CLEAR. LOW 8.
FRIDAY..SUNNY. HIGH 21.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 21.
SATURDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 10.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
LUTSEL K'E REGION.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..CLEAR. LOW 14.
THURSDAY..SUNNY. HIGH 19.
THURSDAY NIGHT..CLEAR. LOW 8.
FRIDAY..SUNNY. HIGH 17.
FRIDAY NIGHT..CLOUDY. LOW 8.
SATURDAY..CLOUDY. HIGH 16.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 9.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 14.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 9.
FT. RESOLUTION REGION INCLUDING HWY. 6.
WEDNESDAY..SUNNY. HIGH 22.
WEDNESDAY NIGHT..CLEAR. LOW 13.
THURSDAY..SUNNY. HIGH 20.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..SUNNY. HIGH 19.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 9.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 11.
HAY RIVER REGION INCLUDING ENTERPRISE.
WEDNESDAY..SUNNY. HIGH 24.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 20.
THURSDAY NIGHT..CLEAR. LOW 8.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 10.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 13.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLEAR. LOW 11.
THURSDAY..SUNNY. HIGH 19.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 18.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 8.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 13.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
WEDNESDAY..SUNNY. HIGH 22.
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 10.
THURSDAY..SUNNY. HIGH 20.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..SUNNY. HIGH 19.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 8.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 14.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 13.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
WEDNESDAY..SUNNY. HIGH 21.
WEDNESDAY NIGHT..CLEAR. LOW 9.
THURSDAY..SUNNY. HIGH 19.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
SUNDAY..PERIODS OF RAIN. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 15.
YELLOWKNIFE REGION.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 18.
THURSDAY NIGHT..CLEAR. LOW 9.
FRIDAY..SUNNY. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW 9.
SATURDAY..CLOUDY. HIGH 15.
SATURDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 9.
SUNDAY..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. HIGH 14.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 10.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
WEDNESDAY..SUNNY. HIGH 21.
WEDNESDAY NIGHT..CLEAR. LOW 9.
THURSDAY..SUNNY. HIGH 18.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..SUNNY. HIGH 17.
FRIDAY NIGHT..CLOUDY. LOW 8.
SATURDAY..CLOUDY. HIGH 16.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 8.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 13.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 10.
WRIGLEY REGION.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..CLEARING. LOW 8.
THURSDAY..SUNNY. HIGH 19.
THURSDAY NIGHT..CLEAR. LOW PLUS 5.
FRIDAY..SUNNY. HIGH 19.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY. HIGH 14.
SATURDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 6.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 12.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
NORMAN WELLS - TULITA REGION.
WEDNESDAY..SUNNY. HIGH 22.
WEDNESDAY NIGHT..CLEAR. LOW 7.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 17.
THURSDAY NIGHT..CLEAR. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 18.
FRIDAY NIGHT..CLOUDY. LOW 6.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 14.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 10.
FORT GOOD HOPE REGION.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 19.
WEDNESDAY NIGHT..CLOUDY PERIODS. WINDY. LOW 8.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 14.
THURSDAY NIGHT..CLEAR. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW PLUS 5.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 10.
SATURDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 4.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 8.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 9.
DELINE.
WEDNESDAY..SUNNY. HIGH 18.
WEDNESDAY NIGHT..CLOUDY. LOW 9.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 18.
THURSDAY NIGHT..CLEAR. LOW PLUS 4.
FRIDAY..SUNNY. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 12.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 10.
COLVILLE LAKE.
WEDNESDAY..A MIX OF SUN AND CLOUD. WINDY. HIGH 17.
WEDNESDAY NIGHT..CLOUDY. WINDY. LOW 10.
THURSDAY..SUNNY. WINDY. HIGH 14.
THURSDAY NIGHT..CLEAR. WINDY. LOW 6.
FRIDAY..INCREASING CLOUDINESS. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW 6.
SATURDAY..CLOUDY. HIGH 9.
SATURDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
SUNDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 8.
END
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