Extreme Heat

• Ontario city needs maximum temperature bylaws as extreme heat settles in: advocates

  As record-breaking heat becomes the norm, medical experts and tenant advocacy groups are renewing calls for the establishment of a maximum indoor air temperature standard.

  Politics

  Jul 15
  
• How extreme heat and humidity fuels more dangerous storms — and tornadoes

  As heat waves blanket parts of Canada, experts say the extreme heat and humidity can also 'fuel' severe thunderstorms — and even tornadoes.

  Environment

  Jul 14
  
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• Heat, humidity return to Ontario while Manitoba shatters temperature records

  Environment Canada has issued heat warnings across the majority of Ontario as well as southern Manitoba and parts of Saskatchewan.

  Weather

  Jul 13
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• Ontario’s hot summer could make drug overdoses worse, expert says

  The number of opioid overdoses is rising across southern Ontario and some experts say the extreme heat could be partially to blame.

  Canada

  Jul 10
• U.S. prepares to celebrate 250th Independence Day while facing extreme heat

  Demonstrations of national pride — and hints of political polarization — were balanced with efforts to stay safe as much of the country baked under soaring temperatures.

  U.S. News

  Jul 3
• Extreme heat, flooding pose safety concerns for Canada Day celebrations

  As communities across Canada prepare for Canada Day, extreme heat and flooding are proving logistically challenging for typical celebrations like fireworks.

  Weather

  Jun 30
• Saskatoon declares level 2 extreme heat emergency

  With temps up to 35 degrees, the city of Saskatoon is taking action, aiming to keep people safe in what feels like an early summer.

  Environment

  May 26
• ‘We are in a heat crisis’: Province should track deaths, ensure school AC, group says

  A network of Ontario civil society groups is calling on the province to develop an extreme-heat awareness program to better address the dangers of sweltering temperatures.

  Weather

  Aug 18, 2025
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• Struggling with the heat? It’s not just you as summer days above 30 C spike

  Amid ongoing heat waves, cities like Toronto, Montreal and Halifax have seen more days above 30 C than normal, some far surpassing their 2024 numbers.

  Weather

  Aug 13, 2025
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• Heat warning for southern Ontario, Quebec set to end tonight

  Southern Ontario is facing another heat wave with temperatures near 35°C and humidex values hitting 40, prompting warnings and expanded cooling measures in Toronto.

  Weather

  Jul 6, 2025