473
FPCN51 CWNT 172125
EXTENDED FORECASTS FROM FRIDAY 19 SEPTEMBER TO TUESDAY 23 SEPTEMBER
FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST
TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 3:30 P.M. MDT WEDNESDAY
17 SEPTEMBER 2025.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:30 A.M. MDT THURSDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 24.
SATURDAY NIGHT..CLEAR. LOW 13.
SUNDAY..CLOUDY. HIGH 21.
SUNDAY NIGHT..CLOUDY. LOW 6.
MONDAY..CLOUDY. HIGH 17.
MONDAY NIGHT..CLOUDY. LOW PLUS 5.
TUESDAY..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
LUTSEL K'E REGION.
FRIDAY..SUNNY. HIGH 17.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 10.
SATURDAY..SUNNY. HIGH 20.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 14.
SUNDAY..CLOUDY. HIGH 20.
SUNDAY NIGHT..CLOUDY. LOW 8.
MONDAY..CLOUDY. HIGH 13.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 9.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 9.
FT. RESOLUTION REGION INCLUDING HWY. 6.
FRIDAY..SUNNY. HIGH 18.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 21.
SATURDAY NIGHT..CLEAR. LOW 12.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SUNDAY NIGHT..CLOUDY. LOW 7.
MONDAY..CLOUDY. HIGH 15.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 11.
HAY RIVER REGION INCLUDING ENTERPRISE.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 21.
SATURDAY NIGHT..CLEAR. LOW 13.
SUNDAY..SUNNY. HIGH 19.
SUNDAY NIGHT..CLOUDY PERIODS. LOW 7.
MONDAY..A MIX OF SUN AND CLOUD. HIGH 15.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 8.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 12.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 22.
SATURDAY NIGHT..CLEAR. LOW 12.
SUNDAY..SUNNY. HIGH 18.
SUNDAY NIGHT..CLOUDY PERIODS. LOW 6.
MONDAY..A MIX OF SUN AND CLOUD. HIGH 14.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW
PLUS 3.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 9.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 12.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 20.
SATURDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW 12.
SUNDAY..SHOWERS. HIGH 14.
SUNDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW
PLUS 5.
MONDAY..CLOUDY. HIGH 10.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 1.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 13.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
FRIDAY..SUNNY. HIGH 20.
FRIDAY NIGHT..CLEAR. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 18.
SATURDAY NIGHT..CLOUDY. LOW 11.
SUNDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 14.
SUNDAY NIGHT..CLOUDY PERIODS. LOW PLUS 3.
MONDAY..A MIX OF SUN AND CLOUD. HIGH 12.
MONDAY NIGHT..CLOUDY PERIODS. LOW PLUS 2.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 11.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 14.
YELLOWKNIFE REGION.
FRIDAY..SUNNY. HIGH 16.
FRIDAY NIGHT..CLEAR. LOW 10.
SATURDAY..SUNNY. HIGH 18.
SATURDAY NIGHT..CLEAR. LOW 12.
SUNDAY..SUNNY. HIGH 17.
SUNDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 7.
MONDAY..CLOUDY. HIGH 12.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 9.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
FRIDAY..SUNNY. HIGH 17.
FRIDAY NIGHT..CLEAR. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 18.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 8.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 14.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 6.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 11.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 3.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 10.
WRIGLEY REGION.
FRIDAY..SUNNY. HIGH 18.
FRIDAY NIGHT..CLEAR. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 16.
SATURDAY NIGHT..SHOWERS. LOW 11.
SUNDAY..RAIN. HIGH 12.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 4.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 9.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 2.
TUESDAY..CLOUDY. HIGH 8.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 11.
NORMAN WELLS - TULITA REGION.
FRIDAY..INCREASING CLOUDINESS. HIGH 16.
FRIDAY NIGHT..CLEARING. LOW 6.
SATURDAY..INCREASING CLOUDINESS. HIGH 13.
SATURDAY NIGHT..CLOUDY. LOW 7.
SUNDAY..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. HIGH 9.
SUNDAY NIGHT..PERIODS OF RAIN. LOW PLUS 1.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR FLURRIES.
HIGH PLUS 4.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF FLURRIES. LOW
MINUS 2.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH PLUS 3.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 10.
FORT GOOD HOPE REGION.
FRIDAY..SUNNY. HIGH 15.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
SATURDAY..CLOUDY. HIGH 12.
SATURDAY NIGHT..SHOWERS. LOW 6.
SUNDAY..SHOWERS. HIGH 8.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 2.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH PLUS 5.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW ZERO.
TUESDAY..CLOUDY. HIGH PLUS 3.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 9.
DELINE.
FRIDAY..INCREASING CLOUDINESS. HIGH 15.
FRIDAY NIGHT..CLEARING. LOW PLUS 5.
SATURDAY..INCREASING CLOUDINESS. HIGH 14.
SATURDAY NIGHT..CLOUDY. LOW 7.
SUNDAY..RAIN. HIGH 12.
SUNDAY NIGHT..PERIODS OF RAIN. LOW PLUS 4.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 7.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 1.
TUESDAY..CLOUDY. HIGH PLUS 4.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 9.
COLVILLE LAKE.
FRIDAY..SUNNY. HIGH 13.
FRIDAY NIGHT..CLEAR. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 12.
SATURDAY NIGHT..CLOUDY. LOW 6.
SUNDAY..CLOUDY. HIGH 10.
SUNDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WINDY. LOW
PLUS 3.
MONDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. WINDY. HIGH PLUS 5.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR
FLURRIES. LOW ZERO.
TUESDAY..CLOUDY. HIGH PLUS 2.
NORMALS FOR THE PERIOD..LOW ZERO. HIGH 7.
END
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