Humidex, storm threat briefly returns to southern Ontario
After the remnants of Hurricane Isaias departed southern Ontario on Sunday, the final surge of summer-like warmth for…
Late-summer heat, humidity fuels southern Ontario thunderstorm risk
After the severe flooding, damaging winds, and tornadoes across parts of Ontario last Wednesday, a storm-free week would…
Tornado, large hail, damaging winds: Severe weather threatens southern Ontario
Warm weather continues across southern Ontario as meteorological summer ends, with widespread temperatures reaching above-seasonal norms. Daytime highs…
Muggy air will fuel storm, torrential downpour risk in southern Ontario
Published on Jun. 9, 2026, 11:35 AM Ontario will see high heat and humidity this week, with humidex…