'Risk to public health': Extended heat warnings issued for parts of B.C.

Jul 20 2026, 10:41 pm

If you’re planning a getaway around B.C. this week, be aware that heat warnings are up in many regions, with a “period of elevated temperatures” expected to last for several days.

While wildfire smoke is impacting Metro Vancouver and several parts of the province, other areas are being warned of high temperatures that are a “risk to public health.”

According to Environment and Climate Change Canada (ECCC), over a dozen yellow heat warnings are in place throughout B.C., and the public is urged to use caution.

Temperatures are expected to reach mid-to-high 30s in several parts of the province, combined with overnight lows in the mid-to-high teens.

heat warnings

Eric Zimmer / Daily Hive

“A ridge of high pressure will bring elevated temperatures to the region,” said ECCC in its warning posted online. “High temperatures may persist until Thursday, followed by a cooling trend.”

EmergencyInfoBC, operated by the Government of B.C.’s Ministry of Emergency Management and Climate Readiness, listed the 18 regions currently under active heat warnings:

  • Central Okanagan – including Kelowna
  • North Okanagan – including Vernon
  • South Okanagan – including Penticton
  • South Thompson
  • Boundary
  • Central Coast – inland sections
  • North Coast – inland including Terrace
  • North Coast – inland including Kitimat
  • Shuswap
  • West Kootenay
  • Howe Sound
  • Whistler
  • Sunshine Coast
  • Fraser Valley – central including Chilliwack
  • Fraser Valley – east including Hope
  • Fraser Valley – west including Abbotsford
  • Fraser Canyon – north including Lillooet
  • Fraser Canyon – south including Lytton
Hot Weather

Dirima/Shutterstock

During heat warnings, ECCC reminds people to check on their vulnerable friends, family, and neighbours who are at higher risk during hot weather.

There are some early signs of heat illness to look out for:

  • Feeling unwell
  • Fatigue
  • Thirst
  • Headache
  • Unusually dark urine

If you are experiencing any of these issues, you’re encouraged to move to a cooler environment, such as a shaded or air-conditioned space.

EmergencyInfoBC also urged British Columbians to drink plenty of water, take precautions to stay cool, and call 911 or their local emergency number in case of a medical emergency.

Closer to home, temperatures in Metro Vancouver could feel up to 35°C inland on Tuesday, with a UV index of 8, or very high.

Midweek temperatures could reach up to 31°C inland on Wednesday and 28°C on Thursday before cooler temperatures return right before the weekend.

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