466
FPCN11 CWNT 201630
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 11:00 A.M. MDT
THURSDAY 20 AUGUST 2026 FOR TODAY AND FRIDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 4:00 P.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..WIDESPREAD SMOKE. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 19. UV INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. CLEARING LATE THIS EVENING. LOCAL SMOKE. WIND
NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 8.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. LOCAL SMOKE
IN THE MORNING AND EARLY IN THE AFTERNOON. HIGH 24. HUMIDEX 26. UV
INDEX 4 OR MODERATE.
LUTSEL K'E REGION.
TODAY..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H. HIGH 18. UV INDEX 3 OR
MODERATE.
TONIGHT..MAINLY CLOUDY. CLEARING NEAR MIDNIGHT. WIND NORTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 10.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
HAZY. HIGH 20. UV INDEX 4 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..WIDESPREAD SMOKE. WIND NORTHWEST 20 KM/H. HIGH 18. UV INDEX 4
OR MODERATE.
TONIGHT..CLEARING LATE THIS EVENING. LOCAL SMOKE. WIND NORTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 8.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. LOCAL SMOKE
IN THE MORNING AND EARLY IN THE AFTERNOON. HIGH 24. HUMIDEX 27. UV
INDEX 4 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..MAINLY SUNNY. HAZY. WIND NORTHWEST 20 KM/H. HIGH 22. UV
INDEX 4 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOCAL SMOKE.
LOW 11.
FRIDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. HIGH 26.
HUMIDEX 28. UV INDEX 4 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..MAINLY SUNNY. LOCAL SMOKE. HIGH 24. HUMIDEX 26. UV INDEX 4 OR
MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOCAL SMOKE.
LOW 11.
FRIDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. HIGH 27.
HUMIDEX 29. UV INDEX 5 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..WIDESPREAD SMOKE. HIGH 25. HUMIDEX 27. UV INDEX 4 OR MODERATE.
TONIGHT..WIDESPREAD SMOKE. LOW 14.
FRIDAY..WIDESPREAD SMOKE. HIGH 28. HUMIDEX 29. UV INDEX 4 OR
MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..MAINLY SUNNY. HAZY. HIGH 26. HUMIDEX 28. UV INDEX 5 OR
MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOW 11.
FRIDAY..MAINLY SUNNY. HIGH 28. HUMIDEX 31. UV INDEX 5 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..MAINLY CLOUDY. CLEARING LATE THIS AFTERNOON. WIND NORTHWEST
20 KM/H. HIGH 19. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 9.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HAZY. WIND
BECOMING SOUTHEAST 20 KM/H NEAR NOON. HIGH 21. UV INDEX 4 OR
MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..MAINLY CLOUDY. CLEARING LATE THIS AFTERNOON. LOCAL SMOKE. WIND
NORTHWEST 20 KM/H. HIGH 19. UV INDEX 3 OR MODERATE.
TONIGHT..CLEAR. LOCAL SMOKE. WIND NORTHWEST 20 KM/H BECOMING LIGHT
THIS EVENING. LOW 8.
FRIDAY..INCREASING CLOUDINESS NEAR NOON. LOCAL SMOKE. WIND BECOMING
SOUTH 20 KM/H NEAR NOON. HIGH 23. UV INDEX 4 OR MODERATE.
WRIGLEY REGION.
TODAY..MAINLY SUNNY. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOCAL SMOKE
LATE THIS EVENING AND OVERNIGHT. LOW 15.
FRIDAY..CLEARING IN THE MORNING. LOCAL SMOKE IN THE MORNING. HIGH 25.
HUMIDEX 27. UV INDEX 4 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..A MIX OF SUN AND CLOUD. HIGH 23. HUMIDEX 25. UV INDEX 4 OR
MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW 13.
FRIDAY..MAINLY CLOUDY. CLEARING EARLY IN THE AFTERNOON. HIGH 22. UV
INDEX 3 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 22. UV INDEX 3 OR MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. LOW 11.
FRIDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE MORNING.
CLEARING LATE IN THE AFTERNOON. HIGH 20. UV INDEX 3 OR MODERATE.
DELINE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 17. UV INDEX 4 OR MODERATE.
TONIGHT..CLEARING LATE THIS EVENING. LOW 11.
FRIDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. LOCAL SMOKE.
HIGH 20. UV INDEX 3 OR MODERATE.
COLVILLE LAKE.
TODAY..CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS. HIGH 15. UV INDEX 2
OR LOW.
TONIGHT..CLEARING THIS EVENING. LOW 10.
FRIDAY..INCREASING CLOUDINESS. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 16. UV INDEX 1 OR LOW.
END
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