Canmore, Alberta is in for a stretch of warm and sunny weather through Friday, August 7, 2026, according to Environment Canada. Daytime highs are expected to reach 24 to 28 degrees Celsius, well above the seasonal normal of 22 degrees.
Wednesday will see sunny skies mixed with some afternoon cloud and a high of 27, though local wildfire smoke may linger. Thursday brings similar conditions with a high of 24 and a humidex of 26, while Friday is forecast to be the warmest day at 28 degrees under full sun.
The UV index will hit high levels of 6 to 7 over the next two days. Health experts recommend wearing a hat, tight woven clothing, and sunscreen on exposed skin, and seeking shade around midday to reduce sun exposure risks.
Smoke from wildfires in the region is expected to stick around through Thursday night before clearing out. Fire danger in Canmore and surrounding areas like Kananaskis Country remains extreme, with a fire ban in effect for Banff National Park. Residents and visitors are urged to be cautious with any outdoor activities that could spark a wildfire.
While the warm spell offers perfect conditions for outdoor plans, some popular trails near Canmore are closed due to rockslides and construction. Alberta Parks lists closures at Grassi Lakes, parts of Spray Lakes Road, and sections of the Canmore Nordic Centre trails. The Highline trail also has avalanche debris in western gullies, though official mountain weather forecasts from Avalanche Canada have ended for the summer season.
Showers are expected to return by Sunday, August 9, with a 60 percent chance of rain lingering through Tuesday. Highs will drop back to around 20 to 23 degrees as the pattern shifts.
