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Heat Warnings Sweep B.C. as Lytton Hits 40.3°C, Canada’s Hottest Reading of 2025

Forecasters say a stubborn high-pressure ridge will keep conditions hot and dry most of the week with only gradual cooling by the weekend.

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Overview

  • Environment Canada has heat warnings across several regions, including the South Thompson, Fraser Canyon and parts of the inland North Coast, with daytime highs commonly reaching 35–37 C through Thursday.
  • A late-summer surge toppled numerous daily records on Aug. 23–24 across B.C., including new marks in Kelowna, Kamloops, Vernon and others, alongside Victoria’s 31.1 C that surpassed a 1916 record.
  • Most of Vancouver Island is under a special weather statement for above-seasonal temperatures, and Metro Vancouver is seeing humidex values near 30–35 with warm overnight lows offering limited relief early this week.
  • Forecasts call for very little rain and only gradual moderation later in the week, with increasing cloud and a slight chance of isolated showers by Friday into the weekend.
  • The BC Wildfire Service warns hot, dry conditions are rapidly drying fuels and urges adherence to open-fire prohibitions along with public-health guidance to check on vulnerable people and never leave children or pets in vehicles.