913
FPCN51 CWNT 181624
EXTENDED FORECASTS FROM FRIDAY NIGHT 19 SEPTEMBER TO WEDNESDAY 24
SEPTEMBER FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 10:30 A.M. MDT
THURSDAY 18 SEPTEMBER 2025.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 3:30 P.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 24.
SATURDAY NIGHT..CLEAR. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 22.
SUNDAY NIGHT..CLEARING. LOW 10.
MONDAY..SUNNY. HIGH 19.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 6.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 11.
TUESDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 3.
WEDNESDAY..CLOUDY. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
LUTSEL K'E REGION.
FRIDAY NIGHT..CLEAR. LOW 10.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 20.
SATURDAY NIGHT..CLEAR. LOW 14.
SUNDAY..SUNNY. HIGH 21.
SUNDAY NIGHT..CLOUDY. LOW 13.
MONDAY..CLEARING. HIGH 18.
MONDAY NIGHT..CLOUDY. LOW 6.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 9.
TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 3.
WEDNESDAY..CLOUDY. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 8.
FT. RESOLUTION REGION INCLUDING HWY. 6.
FRIDAY NIGHT..CLEAR. LOW 10.
SATURDAY..SUNNY. HIGH 21.
SATURDAY NIGHT..CLEAR. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 20.
SUNDAY NIGHT..CLEAR. LOW 10.
MONDAY..SUNNY. HIGH 19.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 10.
TUESDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW PLUS 2.
WEDNESDAY..CLOUDY. HIGH 9.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 11.
HAY RIVER REGION INCLUDING ENTERPRISE.
FRIDAY NIGHT..CLEAR. LOW 10.
SATURDAY..SUNNY. HIGH 22.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 14.
SUNDAY..A MIX OF SUN AND CLOUD. HIGH 20.
SUNDAY NIGHT..CLEAR. LOW 10.
MONDAY..SUNNY. HIGH 18.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS.
LOW 6.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
HIGH 10.
TUESDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW
PLUS 3.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 9.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 12.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
FRIDAY NIGHT..CLEAR. LOW 11.
SATURDAY..SUNNY. HIGH 23.
SATURDAY NIGHT..CLOUDY PERIODS. LOW 14.
SUNDAY..SUNNY. HIGH 21.
SUNDAY NIGHT..CLEAR. LOW 10.
MONDAY..SUNNY. HIGH 18.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW
PLUS 4.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 11.
TUESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..SUNNY. HIGH 21.
SATURDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW 12.
SUNDAY..CLEARING. HIGH 17.
SUNDAY NIGHT..CLOUDY. LOW 11.
MONDAY..A MIX OF SUN AND CLOUD. HIGH 16.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 1.
TUESDAY..CLOUDY. HIGH 8.
TUESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 1.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 12.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
SATURDAY NIGHT..CLEARING. LOW 8.
SUNDAY..SUNNY. HIGH 16.
SUNDAY NIGHT..CLEAR. LOW 8.
MONDAY..INCREASING CLOUDINESS. HIGH 16.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF SHOWERS. LOW
PLUS 2.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 11.
TUESDAY NIGHT..CLOUDY PERIODS. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 10.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 14.
YELLOWKNIFE REGION.
FRIDAY NIGHT..CLEAR. LOW 9.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 17.
SATURDAY NIGHT..INCREASING CLOUDINESS. LOW 13.
SUNDAY..SUNNY. HIGH 19.
SUNDAY NIGHT..CLEAR. LOW 10.
MONDAY..SUNNY. HIGH 15.
MONDAY NIGHT..CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS. LOW PLUS 5.
TUESDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 7.
TUESDAY NIGHT..CLOUDY. LOW PLUS 3.
WEDNESDAY..CLOUDY. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 9.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
FRIDAY NIGHT..CLEAR. LOW 8.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 18.
SATURDAY NIGHT..CLOUDY. LOW 10.
SUNDAY..CLEARING. HIGH 16.
SUNDAY NIGHT..CLEAR. LOW 6.
MONDAY..CLOUDY. HIGH 12.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 4.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 8.
TUESDAY NIGHT..CLOUDY. LOW PLUS 1.
WEDNESDAY..CLOUDY. HIGH 7.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 9.
WRIGLEY REGION.
FRIDAY NIGHT..CLEAR. LOW 6.
SATURDAY..SUNNY. HIGH 18.
SATURDAY NIGHT..SHOWERS. LOW 11.
SUNDAY..SHOWERS. HIGH 11.
SUNDAY NIGHT..PERIODS OF RAIN. LOW 6.
MONDAY..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. HIGH 9.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 2.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 8.
TUESDAY NIGHT..CLOUDY PERIODS. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 8.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 11.
NORMAN WELLS - TULITA REGION.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 12.
SATURDAY NIGHT..CLOUDY. LOW 8.
SUNDAY..RAIN. WINDY. HIGH 8.
SUNDAY NIGHT..RAIN. WINDY. LOW PLUS 3.
MONDAY..PERIODS OF RAIN. WINDY. HIGH 6.
MONDAY NIGHT..CLOUDY PERIODS WITH 30 PERCENT CHANCE OF FLURRIES. LOW
MINUS 2.
TUESDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF FLURRIES.
HIGH PLUS 3.
TUESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 1.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH PLUS 5.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 9.
FORT GOOD HOPE REGION.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..CLOUDY. HIGH 12.
SATURDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 7.
SUNDAY..CLOUDY WITH 70 PERCENT CHANCE OF SHOWERS. HIGH 7.
SUNDAY NIGHT..RAIN. LOW PLUS 2.
MONDAY..RAIN. HIGH 6.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW ZERO.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. HIGH PLUS 3.
TUESDAY NIGHT..CLOUDY PERIODS. LOW MINUS 1.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH PLUS 4.
NORMALS FOR THE PERIOD..LOW ZERO. HIGH 8.
DELINE.
FRIDAY NIGHT..CLEAR. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 14.
SATURDAY NIGHT..INCREASING CLOUDINESS. LOW 7.
SUNDAY..RAIN. HIGH 12.
SUNDAY NIGHT..SHOWERS. LOW PLUS 4.
MONDAY..SHOWERS. WINDY. HIGH 6.
MONDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 1.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES OR RAIN SHOWERS.
HIGH PLUS 4.
TUESDAY NIGHT..CLOUDY PERIODS. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH PLUS 5.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 9.
COLVILLE LAKE.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 12.
SATURDAY NIGHT..CLOUDY. LOW 8.
SUNDAY..SHOWERS. HIGH 9.
SUNDAY NIGHT..RAIN. WINDY. LOW PLUS 3.
MONDAY..RAIN. WINDY. HIGH 6.
MONDAY NIGHT..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. LOW ZERO.
TUESDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. HIGH PLUS 3.
TUESDAY NIGHT..CLOUDY. LOW MINUS 1.
WEDNESDAY..CLOUDY. HIGH PLUS 3.
NORMALS FOR THE PERIOD..LOW ZERO. HIGH 7.
END
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