Skip to main content
NewslettersWatchlist
Toronto: How hot is it?
EVAN ANNETT

This article was published more than 9 years ago. Some information may no longer be current.

Toronto is under an extreme heat alert on Wednesday as a hot air mass continues to blanket Southern Ontario.

Environment Canada predicted a high of 34 degrees in the city today, with signs of rain and lower temperatures coming over the long weekend. Until then, though, forecasters and city authorities were urging Torontonians – who had been under a lower-level heat alert since Monday – to stay cool and keep calm.

Weather: Read Environment Canada’s forecast for your area

Heat alerts: What’s the difference?

Under its current heat-alert system, introduced this spring, Toronto Public Health issues heat alerts when, for two days in a row, the daytime temperature reaches or exceeds 31 degrees, the overnight low reaches or exceeds 20 degrees or the humidex is 40 or higher. If those conditions last longer, an extreme heat alert is issued, meaning the city can open cooling centres and extend the hours for some city pools.

Stay cool: Find out where the city’s cooling centres are

Public transit

GO Transit users have faced delays this week as the high temperatures heat up and bend train tracks. Here’s GO’s explanation of why that happens:

Baking in the heat

Weather Network meteorologist Scott Sutherland successfully baked a sheet of chocolate chip cookies by leaving them on a car dashboard outside the network’s Oakville headquarters for four hours.

Burned at the pool

As Ontarians turn to community pools to avoid the heat, a one-year-old boy got badly burned instead.

Greyson Pelvin was playing at a water park in Georgetown, Ont., on Monday and got second-degree burns to his feet by stepping on ground-level metal doors, his parents, Jill and Dave Pelvin, told CBC News.