Toronto and GTA Under Heat Warning For Next Two Days, Cooler Temperatures To Break Heat Wave By Weekend

Toronto and much of the GTA are under a heat warning for the next several days.

Environment Canada says the two-day heat event will see maximum daytime temperatures of up to 31 C in some areas.

“Daytime high temperatures are expected to be near 30 degrees Celsius today and Friday. Overnight temperatures are expected to be in the high teens, providing little relief from the heat,” it said in the advisory issued Thursday. “Cooler temperatures return on Saturday.”

Similar heat warnings are also in effect for Mississauga, Brampton, Hamilton and stretching all the way to Oshawa in the east.

It’s possible Toronto could set several new temperature records in the process.

“The record for June 1, 28.3 set in 1948, we could easily break that with our guaranteed high of 31, and tomorrow’s record of 30.2 set in 2016 …certainly we could break that,” said CityNews 680 meteorologist Jill Taylor.

The national weather service also issued a special air quality statement for much of southern Ontario due to the hot and humid air in the region.

“Individuals may experience symptoms such as increased coughing, throat irritation, headaches or shortness of breath. Children, seniors, and those with cardiovascular or lung disease, such as asthma, are especially at risk,” the weather agency said.

“Exposure to air pollution is particularly a concern for children, the elderly, and those who have underlying medical conditions such as lung or heart disease.”