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Alberta Faces Heat Warning as Wildfires Continue to Spread

Daytime highs will hit the mid-30s on Wednesday with fire bans and evacuation orders in place across the province.

A head of wheat is silhouetted by the sun in a wheat crop near Cremona, Alta., Tuesday, Sept. 6, 2022.
A couple kicks back in Emily Murphy park on Wednesday, June 25, 2025, with an umbrella and a pair of dogs as thunder rumbled from the dark clouds above. Shaughn Butts/Postmedia
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Overview

  • Environment and Climate Change Canada issued a heat warning on July 1 for much of Alberta, including Edmonton and Calgary, forecasting daytime highs of 29–35 °C and overnight lows near 14 °C.
  • Temperatures are expected to peak Wednesday in the low 30s before relief arrives Thursday.
  • Sixty-two wildfires are burning across Alberta with 19 uncontrolled blazes triggering fire bans and evacuation orders in several regions.
  • Alberta Health Services has urged residents to stay hydrated, seek cool spaces and monitor for signs of heat exhaustion or stroke.
  • Canadian summers have warmed nearly 2 °C since the 1940s, intensifying drought conditions and driving an early, severe fire season in the Prairies.