Extreme heat and storm threat in Ontario this weekend

Forecast Centre The Weather Network The heat is on in southern Ontario for the first weekend of July as a tumbling ridge ushers in hot, muggy air, accompanied by a risk of scattered thunderstorms. July didn't waste any time in bringing the heat to southern Ontario as warm, southerly winds will drag a humid air mass into the region this weekend. The heat event will persist Saturday and Sunday, with temperatures expected to climb into the 30s while the humidex approaches, hits or exceeds 40. Overnight lows won't offer much in the way of relief, either. Coming with the heat will be a higher thunderstorm risk on Sunday, so make sure to stay weather-aware if you have any plans.

Take it easy in the hot weather—high heat and humidity can affect even healthy individuals. Keep an eye on the radar as you go about your day and pay attention to watches and warnings in your area. Heat warnings in effect this weekend. Heat warnings blanket southern Ontario for Saturday and Sunday. Folks with chronic health conditions and those living without air conditioning may struggle this weekend as feels-like values climb to 40 or higher in many locations. Sunday will feel like 42 in Windsor, 39 in Toronto, and 40 in Ottawa. In addition to the heat of the day, the mugginess will keep overnight temperatures on the warm side, precluding the ability to find meaningful relief after sundown.

According to the source: The Weather Network.