A taste of summer heat in southern Ontario on Tuesday could also set off severe thunderstorms in the afternoon and evening, ...

The Colorado low, a significant weather system, will lift into northeastern Ontario by Tuesday morning, funneling a warm and moist air mass across southern Ontario. This will create highly unstable ...

The returning humidex will help to fuel a severe thunderstorm risk across southern and eastern Ontario on Tuesday.

Strong winds will accompany warmth in the upper 20s on Tuesday ahead of a sharp cold front which will set off strong storms ...

Summer-like heat will greet millions across southern Ontario early this week, but it may come at a cost. A Colorado low will ...