653
FPCN11 CWNT 171036
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 5:00 A.M. MDT
MONDAY 17 AUGUST 2026 FOR TODAY AND TUESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..SUNNY. HIGH 21. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 12.
TUESDAY..INCREASING CLOUDINESS IN THE MORNING. HIGH 23. HUMIDEX 26.
UV INDEX 4 OR MODERATE.
LUTSEL K'E REGION.
TODAY..CLEARING. HIGH 17. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 22. UV INDEX 4 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..SUNNY. HIGH 21. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. LOW 12.
TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTH 20 KM/H IN THE
AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 5 OR MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..CLEARING. WIND BECOMING EAST 20 KM/H THIS AFTERNOON. HIGH 24.
HUMIDEX 26. UV INDEX 5 OR MODERATE.
TONIGHT..CLEAR. INCREASING CLOUDINESS OVERNIGHT. WIND SOUTHEAST
20 KM/H BECOMING LIGHT OVERNIGHT. LOW 14.
TUESDAY..A MIX OF SUN AND CLOUD. WIND BECOMING SOUTHWEST 20 KM/H IN
THE MORNING. HIGH 25. HUMIDEX 28. UV INDEX 5 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..CLEARING EARLY THIS MORNING. HIGH 25. HUMIDEX 27. UV INDEX 5
OR MODERATE.
TONIGHT..INCREASING CLOUDINESS NEAR MIDNIGHT. LOW 14.
TUESDAY..CLEARING IN THE MORNING. HIGH 26. HUMIDEX 29. UV INDEX 5 OR
MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..SUNNY. LOCAL SMOKE. HIGH 28. HUMIDEX 30. UV INDEX 5 OR
MODERATE.
TONIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. LOCAL SMOKE. LOW 15.
TUESDAY..SUNNY. HIGH 28. HUMIDEX 30. UV INDEX 5 OR MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..MAINLY SUNNY. INCREASING CLOUDINESS THIS AFTERNOON. WIND
BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 NEAR NOON. HIGH 26. HUMIDEX
28. UV INDEX 5 OR MODERATE.
TONIGHT..CLEARING LATE THIS EVENING. WIND SOUTHWEST 20 KM/H GUSTING
TO 40 BECOMING LIGHT NEAR MIDNIGHT. LOW 16.
TUESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
BECOMING SOUTHWEST 20 KM/H IN THE MORNING. HIGH 25. HUMIDEX 27. UV
INDEX 5 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..SUNNY. WIND BECOMING SOUTHEAST 20 KM/H THIS AFTERNOON.
HIGH 18. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. WIND SOUTHEAST 20 KM/H. LOW 13.
TUESDAY..CLEARING IN THE MORNING. WIND SOUTHEAST 30 KM/H. HIGH 21. UV
INDEX 5 OR MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..SUNNY. LOCAL SMOKE. WIND BECOMING SOUTHEAST 20 KM/H THIS
MORNING. HIGH 23. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOCAL SMOKE.
WIND SOUTHEAST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT. LOW 11.
TUESDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY IN THE MORNING.
HIGH 23. HUMIDEX 26. UV INDEX 4 OR MODERATE.
WRIGLEY REGION.
TODAY..WIDESPREAD SMOKE DISPERSING THIS AFTERNOON THEN SUNNY. WIND
BECOMING SOUTHEAST 20 KM/H NEAR NOON. HIGH 28. HUMIDEX 31. UV
INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS
EVENING. CLEARING NEAR MIDNIGHT. WIND SOUTHEAST 20 KM/H BECOMING
LIGHT NEAR MIDNIGHT. LOW 14.
TUESDAY..SUNNY IN THE MORNING AND EARLY IN THE AFTERNOON THEN A MIX
OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE
AFTERNOON. WIND BECOMING NORTHWEST 20 KM/H NEAR NOON. HIGH 24.
HUMIDEX 26. UV INDEX 4 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..SUNNY. INCREASING CLOUDINESS THIS AFTERNOON. WIND BECOMING
SOUTHEAST 20 KM/H NEAR NOON. HIGH 25. HUMIDEX 28. UV INDEX 4 OR
MODERATE.
TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING.
CLEARING LATE THIS EVENING. WIND NORTHWEST 30 KM/H BECOMING LIGHT
NEAR MIDNIGHT. LOW 12.
TUESDAY..INCREASING CLOUDINESS EARLY IN THE MORNING. 30 PERCENT
CHANCE OF SHOWERS IN THE AFTERNOON WITH RISK OF A THUNDERSTORM. WIND
WEST 30 KM/H. HIGH 22. UV INDEX 3 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..SUNNY. INCREASING CLOUDINESS THIS AFTERNOON. HIGH 24. HUMIDEX
27. UV INDEX 4 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW 15.
TUESDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING WEST 20 KM/H
NEAR NOON. HIGH 22. UV INDEX 3 OR MODERATE.
DELINE.
TODAY..WIDESPREAD SMOKE. WIND BECOMING SOUTHEAST 20 KM/H NEAR NOON.
HIGH 23. HUMIDEX 26. UV INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. CLEARING BEFORE MORNING. WIND SOUTHEAST
20 KM/H BECOMING NORTHWEST 20 THIS EVENING. LOW 12.
TUESDAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON WITH RISK OF A THUNDERSTORM. WIND BECOMING NORTHWEST
30 KM/H NEAR NOON. HIGH 18. UV INDEX 3 OR MODERATE.
COLVILLE LAKE.
TODAY..SUNNY. WIDESPREAD SMOKE THIS AFTERNOON. HIGH 25. HUMIDEX 28.
UV INDEX 4 OR MODERATE.
TONIGHT..CLOUDY. CLEARING AFTER MIDNIGHT. WIDESPREAD SMOKE THIS
EVENING. LOW 15.
TUESDAY..MAINLY CLOUDY. CLEARING NEAR NOON. WIND SOUTHWEST 20 KM/H.
HIGH 21. UV INDEX 3 OR MODERATE.
END
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