FPCN51 CWNT 171625
EXTENDED FORECASTS FROM MONDAY NIGHT 18 MAY TO SATURDAY 23 MAY FOR
THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST
TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 10:30 A.M. MDT SUNDAY 17
MAY 2026.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 3:30 P.M. MDT.

THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
MONDAY NIGHT..CLEAR. LOW 6.
TUESDAY..SUNNY. HIGH 20.
TUESDAY NIGHT..CLEAR. LOW 7.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..CLEAR. LOW 6.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 17.
THURSDAY NIGHT..CLOUDY PERIODS. LOW 6.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 18.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 7.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 19.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 16.

LUTSEL K'E REGION.
MONDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 17.
TUESDAY NIGHT..CLEAR. LOW PLUS 1.
WEDNESDAY..SUNNY. HIGH 11.
WEDNESDAY NIGHT..CLOUDY. LOW PLUS 2.
THURSDAY..CLOUDY. HIGH 9.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 13.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 14.
NORMALS FOR THE PERIOD..LOW ZERO. HIGH 10.

FT. RESOLUTION REGION INCLUDING HWY. 6.
MONDAY NIGHT..INCREASING CLOUDINESS. LOW 8.
TUESDAY..SUNNY. HIGH 19.
TUESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 12.
WEDNESDAY NIGHT..CLEAR. LOW PLUS 4.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 16.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 13.

HAY RIVER REGION INCLUDING ENTERPRISE.
MONDAY NIGHT..CLOUDY PERIODS. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 17.
TUESDAY NIGHT..CLOUDY PERIODS. LOW 6.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 14.
WEDNESDAY NIGHT..CLEAR. LOW 6.
THURSDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS.
 HIGH 12.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 14.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 13.

FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
MONDAY NIGHT..CLEAR. LOW PLUS 5.
TUESDAY..CLOUDY. HIGH 20.
TUESDAY NIGHT..CLOUDY. LOW 8.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 18.
WEDNESDAY NIGHT..CLEAR. LOW 6.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 17.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 17.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 14.

FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
MONDAY NIGHT..CLEAR. LOW 9.
TUESDAY..CLOUDY. HIGH 17.
TUESDAY NIGHT..CLOUDY. LOW 9.
WEDNESDAY..SUNNY. HIGH 21.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 9.
THURSDAY..PERIODS OF RAIN. HIGH 15.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 19.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 20.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 17.

FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
MONDAY NIGHT..CLOUDY. LOW 11.
TUESDAY..CLOUDY. HIGH 18.
TUESDAY NIGHT..CLEARING. LOW PLUS 5.
WEDNESDAY..SUNNY. HIGH 23.
WEDNESDAY NIGHT..CLOUDY. LOW 9.
THURSDAY..CLOUDY. HIGH 19.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 17.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 17.
NORMALS FOR THE PERIOD..LOW PLUS 4. HIGH 18.

YELLOWKNIFE REGION.
MONDAY NIGHT..CLOUDY. LOW 7.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 16.
TUESDAY NIGHT..CLOUDY PERIODS. LOW 7.
WEDNESDAY..CLOUDY. HIGH 16.
WEDNESDAY NIGHT..CLEARING. LOW PLUS 4.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 15.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 13.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 16.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.

NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
MONDAY NIGHT..CLEARING. LOW PLUS 4.
TUESDAY..CLOUDY. HIGH 17.
TUESDAY NIGHT..CLOUDY. LOW 6.
WEDNESDAY..CLEARING. HIGH 15.
WEDNESDAY NIGHT..CLEAR. LOW PLUS 5.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 15.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 14.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 12.

WRIGLEY REGION.
MONDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 18.
TUESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
WEDNESDAY..SUNNY. HIGH 20.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 7.
THURSDAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 17.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 14.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 3.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 3. HIGH 15.

NORMAN WELLS - TULITA REGION.
MONDAY NIGHT..CLOUDY PERIODS. LOW 7.
TUESDAY..CLOUDY. HIGH 12.
TUESDAY NIGHT..CLOUDY. LOW PLUS 5.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..INCREASING CLOUDINESS. LOW 6.
THURSDAY..CLOUDY. HIGH 17.
THURSDAY NIGHT..CLOUDY. LOW PLUS 5.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16.
FRIDAY NIGHT..CLOUDY PERIODS. LOW 6.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 15.
NORMALS FOR THE PERIOD..LOW PLUS 2. HIGH 14.

FORT GOOD HOPE REGION.
MONDAY NIGHT..CLOUDY. LOW 6.
TUESDAY..CLOUDY. HIGH 11.
TUESDAY NIGHT..CLOUDY. LOW PLUS 3.
WEDNESDAY..SUNNY. HIGH 19.
WEDNESDAY NIGHT..CLEAR. LOW 6.
THURSDAY..CLOUDY. HIGH 14.
THURSDAY NIGHT..CLOUDY. LOW PLUS 2.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 9.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 9.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 11.

DELINE.
MONDAY NIGHT..CLEAR. LOW PLUS 3.
TUESDAY..A MIX OF SUN AND CLOUD. HIGH 13.
TUESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 2.
WEDNESDAY..SUNNY. HIGH 11.
WEDNESDAY NIGHT..CLOUDY PERIODS. LOW PLUS 5.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 13.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 3.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 10.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 2.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 12.
NORMALS FOR THE PERIOD..LOW PLUS 1. HIGH 12.

COLVILLE LAKE.
MONDAY NIGHT..CLEAR. LOW PLUS 2.
TUESDAY..CLOUDY. HIGH 6.
TUESDAY NIGHT..CLOUDY. LOW ZERO.
WEDNESDAY..A MIX OF SUN AND CLOUD. HIGH 10.
WEDNESDAY NIGHT..CLEAR. LOW PLUS 3.
THURSDAY..A MIX OF SUN AND CLOUD. HIGH 12.
THURSDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 7.
FRIDAY NIGHT..CLOUDY PERIODS. LOW PLUS 1.
SATURDAY..A MIX OF SUN AND CLOUD. HIGH 7.
NORMALS FOR THE PERIOD..LOW MINUS 1. HIGH 8.

END