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Smoke and Heat Warnings Cover Much of B.C. as Lytton Reaches 40 Degrees

Environment Canada says smoke and extreme temperatures could reduce air quality and push daytime highs into the mid-30s to 40 C.

  • On Wednesday, Environment Canada issued yellow-level warnings for extreme heat and wildfire smoke affecting British Columbia's Interior, with Fraser Canyon temperatures expected to reach 40 C Wednesday afternoon.
  • A ridge of high pressure is driving the extreme temperatures, while 89 active wildfires—including the Brunswick Complex near Boston Bar—are deteriorating air quality across the province.
  • The Air Quality Health Index sits at five in the North Okanagan and Central Okanagan as of 10 a.m., with residents advised to limit strenuous outdoor activities and seek air-conditioned spaces.
  • Environment Canada recommends checking on vulnerable neighbors, including seniors and those with chronic illnesses, as wildfire smoke is expected to cause poor air quality over the next 24 to 48 hours.
  • A cooling trend is expected to begin Thursday, though smoke will likely persist across the province until weather patterns shift, maintaining poor air quality and reduced visibility.
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The Weather Network broke the news on Tuesday, July 21, 2026.
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