802
FPCN11 CWNT 232130
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT
SUNDAY 23 AUGUST 2026 FOR TONIGHT MONDAY AND MONDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT MONDAY.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND RISK OF A THUNDERSTORM. CLEARING THIS EVENING. LOW 12.
MONDAY..SUNNY. INCREASING CLOUDINESS LATE IN THE AFTERNOON. LOCAL
SMOKE IN THE AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO
40 IN THE AFTERNOON. HIGH 24. HUMIDEX 25. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..MAINLY CLOUDY. LOCAL SMOKE. WIND NORTHWEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT OVERNIGHT. LOW 11.
LUTSEL K'E REGION.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND RISK OF A THUNDERSTORM. CLEARING THIS EVENING. LOW 13.
MONDAY..SUNNY. INCREASING CLOUDINESS IN THE AFTERNOON. LOCAL SMOKE
LATE IN THE MORNING AND IN THE AFTERNOON. WIND BECOMING WEST 30 KM/H
GUSTING TO 50 IN THE AFTERNOON. HIGH 21. UV INDEX 3 OR MODERATE.
MONDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOCAL
SMOKE. WIND WEST 30 KM/H GUSTING TO 50. LOW 12.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING AND RISK OF A THUNDERSTORM. CLEARING THIS EVENING. LOW 12.
MONDAY..SUNNY. INCREASING CLOUDINESS EARLY IN THE AFTERNOON. LOCAL
SMOKE LATE IN THE MORNING AND IN THE AFTERNOON. WIND BECOMING WEST
30 KM/H GUSTING TO 50 NEAR NOON. HIGH 19. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..MAINLY CLOUDY. LOCAL SMOKE. WIND NORTHWEST 30 KM/H
GUSTING TO 50 BECOMING LIGHT OVERNIGHT. LOW 13.
HAY RIVER REGION INCLUDING ENTERPRISE.
TONIGHT..CLEAR. WIND WEST 20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR
MIDNIGHT. LOW 14.
MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. LOCAL
SMOKE LATE IN THE MORNING AND IN THE AFTERNOON. WIND BECOMING
NORTHWEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 20. UV INDEX 4
OR MODERATE.
MONDAY NIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. LOCAL SMOKE.
WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT.
LOW 10.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TONIGHT..CLEAR. LOW 12.
MONDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 30 PERCENT CHANCE
OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. LOCAL SMOKE.
WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 19. UV INDEX 3 OR
MODERATE.
MONDAY NIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING. CLEARING NEAR MIDNIGHT. LOCAL SMOKE. WIND NORTHWEST
20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 7.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY OVERNIGHT WITH 30 PERCENT
CHANCE OF SHOWERS. LOCAL SMOKE. WIND WEST 20 KM/H BECOMING LIGHT
THIS EVENING. WIND BECOMING NORTHWEST 20 GUSTING TO 40 NEAR
MIDNIGHT. LOW 11.
MONDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING
AND EARLY IN THE AFTERNOON. LOCAL SMOKE. WIND NORTHWEST 20 KM/H
GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH 22. UV INDEX 3
OR MODERATE.
MONDAY NIGHT..CLEARING IN THE EVENING. LOCAL SMOKE. LOW 10.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. LOCAL SMOKE
OVERNIGHT. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS
EVENING. LOW 10.
MONDAY..A MIX OF SUN AND CLOUD. CLEARING LATE IN THE AFTERNOON. LOCAL
SMOKE. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE.
MONDAY NIGHT..CLEAR. LOCAL SMOKE. LOW 9.
YELLOWKNIFE REGION.
TONIGHT..A FEW CLOUDS. LOCAL SMOKE. LOW 13.
MONDAY..INCREASING CLOUDINESS. 40 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. LOCAL SMOKE. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO
50 IN THE MORNING. HIGH 19. UV INDEX 3 OR MODERATE.
MONDAY NIGHT..CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE EVENING.
LOCAL SMOKE. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 10.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TONIGHT..PARTLY CLOUDY. LOCAL SMOKE. LOW 11.
MONDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 60 PERCENT CHANCE
OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. LOCAL SMOKE.
WIND WEST 30 KM/H GUSTING TO 50. HIGH 14. UV INDEX 2 OR LOW.
MONDAY NIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. LOCAL SMOKE. WIND NORTHWEST 30 KM/H GUSTING TO 50.
LOW 6.
WRIGLEY REGION.
TONIGHT..BECOMING CLOUDY THIS EVENING WITH A FEW SHOWERS. WIND
BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS EVENING. LOW 10.
MONDAY..A FEW SHOWERS ENDING NEAR NOON THEN CLEARING. WIND NORTHWEST
20 KM/H GUSTING TO 40 BECOMING LIGHT NEAR NOON. HIGH 19. UV INDEX 2
OR LOW.
MONDAY NIGHT..CLEAR. LOW 9.
NORMAN WELLS - TULITA REGION.
TONIGHT..PERIODS OF RAIN ENDING OVERNIGHT THEN CLOUDY WITH 60 PERCENT
CHANCE OF SHOWERS. AMOUNT 10 TO 20 MM. WIND WEST 20 KM/H GUSTING TO
40 INCREASING TO 40 GUSTING TO 60 EARLY THIS EVENING. LOW 8.
MONDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN THE
MORNING. CLEARING IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 50
BECOMING LIGHT NEAR NOON. HIGH 17. UV INDEX 3 OR MODERATE.
MONDAY NIGHT..CLEAR. LOW 8.
FORT GOOD HOPE REGION.
TONIGHT..PERIODS OF RAIN ENDING OVERNIGHT THEN CLOUDY WITH 30 PERCENT
CHANCE OF SHOWERS. AMOUNT 10 TO 15 MM. WIND NORTHWEST 20 KM/H
GUSTING TO 40. LOW 7.
MONDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. CLEARING NEAR NOON. HIGH 16. UV INDEX 3 OR MODERATE.
MONDAY NIGHT..A FEW CLOUDS. LOW 9.
DELINE.
TONIGHT..PERIODS OF RAIN. AMOUNT 5 TO 10 MM. WIND NORTHWEST 30 KM/H
GUSTING TO 50. LOW 9.
MONDAY..PERIODS OF RAIN ENDING IN THE AFTERNOON THEN CLOUDY. WIND
NORTHWEST 30 KM/H GUSTING TO 50. HIGH 12. UV INDEX 2 OR LOW.
MONDAY NIGHT..CLEARING IN THE EVENING. LOW 7.
COLVILLE LAKE.
TONIGHT..RAIN ENDING OVERNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF
SHOWERS. AMOUNT 5 TO 10 MM. WIND NORTHEAST 30 KM/H GUSTING TO 50.
LOW 7.
MONDAY..A MIX OF SUN AND CLOUD. WIND NORTH 20 KM/H BECOMING LIGHT IN
THE AFTERNOON. HIGH 14. UV INDEX 2 OR LOW.
MONDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. WIND BECOMING
SOUTH 20 KM/H OVERNIGHT. LOW 9.
END
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