Environment Canada has issued heat warnings across Ontario for a prolonged heatwave ahead of Canada Day, with humidex values ...

Environment Canada issues severe thunderstorm watches for eastern Ontario with high winds and tornado risks ahead of multiday ...

Environment Canada has issued a severe thunderstorm watch for Northumberland and Belleville. Large hail, heavy rain and ...

Environment Canada issued a heat warning for Newmarket, Georgina and northern York Region on Monday, June 29, as temperatures ...

Environment Canada has issued a heat warning ahead of a prolonged heat event that could last into the weekend.

Environment Canada issued a severe thunderstorm watch for a large portion of eastern Ontario, including the Ottawa Valley, on Thursday morning. Severe thunderstorm watches are issued when conditions ...

It’s going to be a swelteringly hot Canada Day in Ontario with the heat and humidity peaking Wednesday into Thursday, with the risk of severe thunderstorms in some areas. Heat warnings have been ...

Environment Canada issued a heat warning on Tuesday for Orillia, Lagoon City, Washago, Port Severn as a “long duration heat event” arrives. This is the first heat event of the season and will continue ...

Environment Canada issued a heat warning for North Bay, Powassan and Mattawa as the first heat event of the season begins on Monday, June 29. Heat warnings are issued when very high temperature or ...