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High heat will persist across Western Canada through the long weekend

Saturday, July 31st 2021, 8:45 pm - Heat warnings remain in effect across Western Canada through the end of the long weekend. Next week could feel some relief across British Columbia, with hot weather persisting on the Prairies.

Another heat wave is underway across much of Western Canada as we make our way through the long weekend. While this heat won’t break any all-time records, the warmth will still feel uncomfortable for many folks. Ongoing wildfires and thick smoke will make matters worse for much of Interior British Columbia. More on the heat, smoke, and a chance for relief, below.

SUNDAY: SMOKE COVERS INTERIOR B.C., HEAT BLANKETS ALBERTA

A large ridge of high pressure over western North America will dominate the region’s weather for the next couple of days.

Julypattern1

Temperatures remain toasty beneath the ridge, where some communities in southeastern B.C. could approach the mid-30s on Sunday.

BC sunday temps

Sunday will feel even hotter in Alberta. The feels-like will climb into the mid-30s all the way into northern Alberta. Hot conditions are possible as far north as the Northwest Territories, where heat warnings stretch into Yellowknife.

temps sunday alberta

Hundreds of fires are burning across B.C. this weekend, and the smoke from those fires will continue to bring hazardous air quality to communities in the Interior.

SEE ALSO: Dangerous B.C. air quality is among the worst on the planet

Smoke will begin to spread toward the coast, as well, which could lead to air quality issues in parts of the Fraser Valley.

ll smoke

However, there is some good news. Some showers and thunderstorms are possible across parts of southern B.C. as moisture flows around the upper-level ridge.

A few communities already saw measurable rain on Saturday. An additional 5 to 10 mm of rain is possible in some lucky spots. It may not seem like much, but any little bit helps when it’s been so dry and there are so many fires burning.

MONDAY: HOT TEMPERATURES SPREAD OVER THE WESTERN PRAIRIES

The ridge will hang on to start the week on the Prairies.

temps monday

Daytime highs could approach 30°C once again in the southern half of N.W.T., and overnight lows there might not cool much below the upper teens. Yellowknife typically sees a high of around 20°C at the beginning of August.

Farther south, the heat will persist for parts of Alberta and begin to spread into Saskatchewan. Temperatures will reach the 30-degree mark in Edmonton on Monday, with highs in the lower 30s common in southern sections of Alberta and Saskatchewan.

THE WEEK AHEAD: SLIGHTLY COOLER IN B.C., HEAT CONTINUES ON THE PRAIRIES

The ridge responsible for this weekend’s warmth will slowly weaken and push off to the east, allowing temperatures to return closer to seasonal across much of British Columbia. An approaching trough could bring a chance for showers and thunderstorms later in the week.

Temperatures will remain well above-seasonal on the Prairies through the coming week, with highs around or above 30°C common across southern parts of the region through next weekend.

Check back for the latest forecast across Western Canada.

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