Southern Ontario Heat Warning

• Cold front to bring relief following ‘extremely hot’ conditions Friday in much of southern Ontario

  A heat warning covers areas including Barrie, the GTA, Hamilton, the Niagara Region, London, south to Windsor. 

  Weather

  Jul 27, 2023
  
• Heat warning issued for much of southern Ontario

  Temperatures are expected reach 32 C with the humidex values reaching up to 40.

  Weather

  Aug 23, 2021
  
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• Heat warning issued for much of southern Ontario, humidex of 40 expected for several days

  Environment Canada has issued a heat warning for much of southern Ontario with humidex values of 40 expected over the next several days.

  Weather

  Aug 10, 2021
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• Heat warning issued for much of southern Ontario with humidex expected in high 30s

  Officials said temperatures will be in the low 30s with humidex values reaching the mid-to-high 30s for part of the week.

  Weather

  Jun 8, 2020
• Heat warning issued for southern Ontario for Sunday and Monday

  Environment Canada says parts of the region could feel like 40 degrees with the humidex.

  Weather

  Aug 4, 2018