Air Quality in Toronto Among World’s Worst as Smoke and Heat Grip City
Wildfire smoke and extreme heat push Toronto’s air quality to one of the worst globally. Warnings remain through Thursday, July 17.
Toronto heat warning 2025
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Toronto Under Heat Warning as Temperatures Soar Into the 40s With Humidex
Environment Canada issues heat warning for Toronto. Learn how long the extreme temperatures will last and how to stay safe.
