875
FPCN51 CWNT 151624
EXTENDED FORECASTS FROM TUESDAY NIGHT 16 SEPTEMBER TO SUNDAY 21
SEPTEMBER FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 10:30 A.M. MDT
MONDAY 15 SEPTEMBER 2025.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 3:30 P.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TUESDAY NIGHT..CLEAR. LOW 9.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 21.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..SUNNY. HIGH 21.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 21.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 10.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 19.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
LUTSEL K'E REGION.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..CLEAR. LOW 14.
THURSDAY..SUNNY. HIGH 18.
THURSDAY NIGHT..CLEAR. LOW 9.
FRIDAY..SUNNY. HIGH 18.
FRIDAY NIGHT..CLOUDY. LOW 8.
SATURDAY..CLOUDY. HIGH 17.
SATURDAY NIGHT..CLOUDY. LOW 9.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 9.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TUESDAY NIGHT..CLEAR. LOW 9.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLEAR. LOW 13.
THURSDAY..SUNNY. HIGH 18.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..INCREASING CLOUDINESS. HIGH 19.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 20.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 9.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 11.
HAY RIVER REGION INCLUDING ENTERPRISE.
TUESDAY NIGHT..CLEAR. LOW 10.
WEDNESDAY..SUNNY. HIGH 24.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. HIGH 20.
THURSDAY NIGHT..CLEAR. LOW 8.
FRIDAY..SUNNY. HIGH 19.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLOUDY. LOW 10.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 13.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLOUDY PERIODS WITH 60 PERCENT CHANCE OF SHOWERS.
LOW 12.
THURSDAY..CLEARING. HIGH 19.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 21.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 8.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 13.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..SUNNY. HIGH 22.
WEDNESDAY NIGHT..PERIODS OF RAIN. LOW 9.
THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 18.
THURSDAY NIGHT..CLEAR. LOW 7.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY. HIGH 19.
SATURDAY NIGHT..CLOUDY WITH 40 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.
TUESDAY NIGHT..CLEAR. LOW PLUS 5.
WEDNESDAY..SUNNY. HIGH 24.
WEDNESDAY NIGHT..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. LOW 10.
THURSDAY..SUNNY. HIGH 20.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 6.
SATURDAY..CLOUDY. HIGH 15.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 14.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 15.
YELLOWKNIFE REGION.
TUESDAY NIGHT..CLEAR. LOW 10.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..CLEAR. LOW 12.
THURSDAY..SUNNY. WINDY. HIGH 16.
THURSDAY NIGHT..CLEAR. LOW 8.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW 9.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 15.
SATURDAY NIGHT..CLOUDY. LOW 10.
SUNDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 10.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TUESDAY NIGHT..CLEAR. LOW 7.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 9.
THURSDAY..RAIN. WINDY. HIGH 15.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..SUNNY. HIGH 16.
FRIDAY NIGHT..CLOUDY. LOW 8.
SATURDAY..CLOUDY. HIGH 16.
SATURDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 8.
SUNDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 14.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 10.
WRIGLEY REGION.
TUESDAY NIGHT..CLEAR. LOW 8.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..PERIODS OF RAIN. LOW 10.
THURSDAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS.
HIGH 17.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..SUNNY. HIGH 17.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY. HIGH 14.
SATURDAY NIGHT..CLOUDY WITH 60 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.
TUESDAY NIGHT..CLEAR. LOW 9.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 21.
WEDNESDAY NIGHT..CLOUDY. LOW 10.
THURSDAY..CLOUDY. HIGH 17.
THURSDAY NIGHT..CLEAR. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 17.
FRIDAY NIGHT..CLOUDY. LOW 6.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 13.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 10.
FORT GOOD HOPE REGION.
TUESDAY NIGHT..CLEAR. LOW PLUS 5.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 19.
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW 9.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 15.
THURSDAY NIGHT..CLEAR. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 15.
FRIDAY NIGHT..CLOUDY. LOW PLUS 5.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 10.
SATURDAY NIGHT..CLOUDY WITH 30 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.
TUESDAY NIGHT..CLEAR. LOW 6.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 10.
THURSDAY..PERIODS OF RAIN. WINDY. HIGH 14.
THURSDAY NIGHT..CLEARING. LOW PLUS 5.
FRIDAY..SUNNY. HIGH 14.
FRIDAY NIGHT..CLOUDY. LOW 7.
SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 12.
SATURDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 6.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 10.
COLVILLE LAKE.
TUESDAY NIGHT..CLEAR. LOW 6.
WEDNESDAY..INCREASING CLOUDINESS. WINDY. HIGH 17.
WEDNESDAY NIGHT..CLOUDY. LOW 11.
THURSDAY..CLOUDY. HIGH 13.
THURSDAY NIGHT..CLEARING. LOW PLUS 5.
FRIDAY..SUNNY. HIGH 13.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
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 8.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 8.
END
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