140
FPCN11 CWNT 231030
FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE
NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 5:00 A.M. MDT
SUNDAY 23 AUGUST 2026 FOR TODAY AND MONDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. MDT.
THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE.
TODAY..A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS OR
THUNDERSTORMS. HIGH 26. HUMIDEX 30. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 13.
MONDAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H IN THE AFTERNOON.
HIGH 24. HUMIDEX 25. UV INDEX 4 OR MODERATE.
LUTSEL K'E REGION.
TODAY..INCREASING CLOUDINESS. 60 PERCENT CHANCE OF SHOWERS LATE THIS
MORNING AND THIS AFTERNOON WITH RISK OF A THUNDERSTORM. WIND EAST
20 KM/H BECOMING LIGHT NEAR NOON. HIGH 24. HUMIDEX 27. UV INDEX 3 OR
MODERATE.
TONIGHT..CLEARING THIS EVENING. LOW 13.
MONDAY..SUNNY. WIND BECOMING WEST 30 KM/H NEAR NOON. HIGH 21. UV
INDEX 3 OR MODERATE.
FT. RESOLUTION REGION INCLUDING HWY. 6.
TODAY..SHOWERS WITH THUNDERSTORMS ENDING EARLY THIS MORNING THEN A
MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS. RISK OF A
THUNDERSTORM THIS MORNING. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING
LIGHT EARLY THIS MORNING. WIND BECOMING WEST 20 NEAR NOON. HIGH 22.
UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 12.
MONDAY..SUNNY. WIND NORTHWEST 30 KM/H. HIGH 19. UV INDEX 4 OR
MODERATE.
HAY RIVER REGION INCLUDING ENTERPRISE.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING THEN SUNNY. WIND WEST 20 KM/H BECOMING LIGHT NEAR NOON.
HIGH 25. HUMIDEX 26. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 14.
MONDAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H IN THE MORNING.
HIGH 20. UV INDEX 4 OR MODERATE.
FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS EARLY
THIS MORNING. BECOMING SUNNY THIS AFTERNOON. LOCAL SMOKE. HIGH 26.
UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOW 11.
MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. HIGH 21. UV
INDEX 4 OR MODERATE.
FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER.
TODAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. LOCAL SMOKE.
WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 27. UV INDEX 4 OR
MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY THIS EVENING. LOCAL SMOKE.
WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. WIND BECOMING
NORTH 30 NEAR MIDNIGHT. LOW 12.
MONDAY..A MIX OF SUN AND CLOUD. LOCAL SMOKE. WIND NORTHWEST 20 KM/H.
HIGH 21. UV INDEX 4 OR MODERATE.
FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E.
TODAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. WIND
SOUTHWEST 20 KM/H. HIGH 25. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. BECOMING PARTLY CLOUDY NEAR MIDNIGHT. LOCAL SMOKE
OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT NEAR MIDNIGHT.
LOW 9.
MONDAY..A MIX OF SUN AND CLOUD. BECOMING SUNNY NEAR NOON. LOCAL
SMOKE. HIGH 24. HUMIDEX 26. UV INDEX 4 OR MODERATE.
YELLOWKNIFE REGION.
TODAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS THIS
MORNING. BECOMING SUNNY THIS AFTERNOON. RISK OF A THUNDERSTORM EARLY
THIS MORNING. LOCAL SMOKE LATE THIS AFTERNOON. WIND EAST 20 KM/H
BECOMING WEST 20 LATE THIS MORNING. HIGH 22. UV INDEX 4 OR MODERATE.
TONIGHT..CLEAR. LOCAL SMOKE EARLY THIS EVENING. WIND SOUTHWEST
20 KM/H BECOMING LIGHT THIS EVENING. LOW 12.
MONDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE MORNING. LOCAL
SMOKE IN THE MORNING. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50
IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE.
NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO.
TODAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS THIS MORNING.
CLEARING THIS AFTERNOON. RISK OF A THUNDERSTORM EARLY THIS MORNING.
LOCAL SMOKE. WIND SOUTHEAST 20 KM/H BECOMING SOUTHWEST 20 THIS
AFTERNOON. HIGH 22. UV INDEX 3 OR MODERATE.
TONIGHT..A FEW CLOUDS. INCREASING CLOUDINESS BEFORE MORNING. LOCAL
SMOKE. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 11.
MONDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS LATE IN THE
MORNING AND IN THE AFTERNOON. LOCAL SMOKE. WIND BECOMING WEST
30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 16. UV INDEX 3 OR
MODERATE.
WRIGLEY REGION.
TODAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD THIS MORNING. FOG
PATCHES DISSIPATING THIS MORNING. WIND BECOMING NORTHWEST 20 KM/H
GUSTING TO 50 NEAR NOON. HIGH 22. UV INDEX 3 OR MODERATE.
TONIGHT..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. WIND
NORTHWEST 20 KM/H GUSTING TO 50. LOW 11.
MONDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. CLEARING NEAR NOON. WIND NORTHWEST 20 KM/H GUSTING TO 50
BECOMING LIGHT IN THE AFTERNOON. HIGH 19. UV INDEX 3 OR MODERATE.
NORMAN WELLS - TULITA REGION.
TODAY..PERIODS OF RAIN. AMOUNT 10 TO 15 MM. LOCAL SMOKE THIS MORNING.
WIND BECOMING WEST 30 KM/H GUSTING TO 50 THIS MORNING. TEMPERATURE
STEADY NEAR 14. UV INDEX 1 OR LOW.
TONIGHT..RAIN. AMOUNT 5 TO 10 MM. WIND WEST 40 KM/H GUSTING TO 60.
LOW 7.
MONDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE
MORNING. CLEARING NEAR NOON. WIND WEST 30 KM/H BECOMING LIGHT IN THE
AFTERNOON. HIGH 17. UV INDEX 3 OR MODERATE.
FORT GOOD HOPE REGION.
TODAY..RAIN. AMOUNT 15 TO 25 MM. LOCAL SMOKE THIS MORNING. WIND
NORTHWEST 30 KM/H GUSTING TO 50. HIGH 16. UV INDEX 1 OR LOW.
TONIGHT..RAIN ENDING THIS EVENING THEN CLOUDY. AMOUNT 5 MM. WIND
NORTHWEST 30 KM/H GUSTING TO 50. LOW 7.
MONDAY..A MIX OF SUN AND CLOUD. WIND NORTHWEST 20 KM/H BECOMING LIGHT
IN THE MORNING. HIGH 17. UV INDEX 3 OR MODERATE.
DELINE.
TODAY..BECOMING CLOUDY THIS MORNING WITH 60 PERCENT CHANCE OF SHOWERS
LATE THIS MORNING AND THIS AFTERNOON. FOG PATCHES DISSIPATING THIS
MORNING. WIND BECOMING NORTHWEST 20 KM/H THIS AFTERNOON. HIGH 15. UV
INDEX 1 OR LOW.
TONIGHT..SHOWERS. AMOUNT 5 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50.
LOW 9.
MONDAY..RAIN ENDING NEAR NOON THEN CLOUDY. WIND NORTHWEST 30 KM/H
GUSTING TO 50. HIGH 13. UV INDEX 3 OR MODERATE.
COLVILLE LAKE.
TODAY..RAIN. AMOUNT 15 TO 25 MM. WIDESPREAD SMOKE THIS MORNING. WIND
NORTH 30 KM/H GUSTING TO 50. TEMPERATURE STEADY NEAR 13. UV INDEX 1
OR LOW.
TONIGHT..RAIN ENDING OVERNIGHT THEN CLOUDY. AMOUNT 5 MM. WIND NORTH
30 KM/H GUSTING TO 50. LOW 8.
MONDAY..CLOUDY. BECOMING A MIX OF SUN AND CLOUD NEAR NOON. WIND
NORTHWEST 20 KM/H BECOMING LIGHT IN THE AFTERNOON. HIGH 14. UV
INDEX 2 OR LOW.
END
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