622
FPCN11 CWNT 181630
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 18 JUNE 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..MAINLY CLOUDY. HIGH 19. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW 9.
FRIDAY..A MIX OF SUN AND CLOUD. 30 PERCENT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGH 19. UV INDEX 6 OR HIGH.
LUTSEL K'E REGION.
TODAY..MAINLY CLOUDY. HIGH 13. UV INDEX 4 OR MODERATE.
TONIGHT..MAINLY CLOUDY. LOW PLUS 4.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 16. UV INDEX 5 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..A MIX OF SUN AND CLOUD. WIND NORTH 20 KM/H. HIGH 15. UV
INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. WIND NORTH 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 7.
FRIDAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTH 20 KM/H NEAR
NOON. HIGH 16. UV INDEX 6 OR HIGH.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..A MIX OF SUN AND CLOUD. HIGH 19. UV INDEX 5 OR MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOW 6.
FRIDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 15.
UV INDEX 5 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 24. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOW 9.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 20. UV INDEX 5 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON. WIND
NORTHWEST 20 KM/H. HIGH 23. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. BECOMING CLEAR NEAR MIDNIGHT. WIND NORTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 10.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING.
HIGH 21. UV INDEX 5 OR MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..SUNNY NEAR NOON THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT
CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS AFTERNOON. HIGH 21.
UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS THIS EVENING
AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. LOW 10.
FRIDAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTHEAST 20 KM/H IN
THE MORNING. HIGH 23. UV INDEX 6 OR HIGH.
YELLOWKNIFE REGION.
TODAY..SUNNY. INCREASING CLOUDINESS LATE THIS AFTERNOON. WIND NORTH
20 KM/H GUSTING TO 40. HIGH 19. UV INDEX 5 OR MODERATE.
TONIGHT..MAINLY CLOUDY. WIND NORTH 20 KM/H GUSTING TO 40 BECOMING
LIGHT NEAR MIDNIGHT. LOW 11.
FRIDAY..MAINLY CLOUDY. HIGH 18. UV INDEX 5 OR MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..INCREASING CLOUDINESS THIS AFTERNOON. WIND NORTHEAST 20 KM/H
GUSTING TO 40. HIGH 22. UV INDEX 6 OR HIGH.
TONIGHT..MAINLY CLOUDY. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING
LIGHT THIS EVENING. LOW 11.
FRIDAY..MAINLY CLOUDY. HIGH 18. UV INDEX 5 OR MODERATE.
WRIGLEY REGION.
TODAY..SUNNY EARLY THIS AFTERNOON THEN A MIX OF SUN AND CLOUD WITH
40 PERCENT CHANCE OF SHOWERS THIS AFTERNOON. RISK OF A THUNDERSTORM
THIS AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 23.
HUMIDEX 25. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS EVENING
AND AFTER MIDNIGHT AND RISK OF A THUNDERSTORM. CLEARING BEFORE
MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS
EVENING. LOW 9.
FRIDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 23. UV
INDEX 5 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. WIND BECOMING WEST
20 KM/H EARLY THIS AFTERNOON. HIGH 21. UV INDEX 5 OR MODERATE.
TONIGHT..PARTLY CLOUDY. LOCAL SMOKE. WIND WEST 20 KM/H BECOMING LIGHT
THIS EVENING. LOW 10.
FRIDAY..A MIX OF SUN AND CLOUD. CLEARING NEAR NOON. LOCAL SMOKE. WIND
BECOMING WEST 20 KM/H IN THE AFTERNOON. HIGH 22. UV INDEX 5 OR
MODERATE.
FORT GOOD HOPE REGION.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS AFTERNOON.
HIGH 23. UV INDEX 5 OR MODERATE.
TONIGHT..A MIX OF SUN AND CLOUD. LOW 11.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 22. UV INDEX 5 OR MODERATE.
DELINE.
TODAY..SUNNY. WIND NORTHWEST 20 KM/H. HIGH 18. UV INDEX 5 OR
MODERATE.
TONIGHT..A FEW CLOUDS. WIND NORTHWEST 20 KM/H BECOMING LIGHT THIS
EVENING. LOW 6.
FRIDAY..SUNNY. HIGH 15. UV INDEX 6 OR HIGH.
COLVILLE LAKE.
TODAY..A MIX OF SUN AND CLOUD. WIND NORTH 20 KM/H. HIGH 17. UV
INDEX 5 OR MODERATE.
TONIGHT..A MIX OF SUN AND CLOUD. WIND NORTH 20 KM/H BECOMING LIGHT
THIS EVENING. LOW 8.
FRIDAY..A MIX OF SUN AND CLOUD. HIGH 17. UV INDEX 5 OR MODERATE.
END
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