Toronto braces for heat, humidity and thunderstorms today. Here's how hot it's expected to get

Toronto Star

16 hours ago

Toronto residents can expect a scorching, humid Wednesday, with temperatures climbing above 28 C and the humidex pushing the heat index to a sweltering 37, according to forecasters.
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The extra-hot stretch could trigger an official heat warning as temperatures are forecast to soar into the high 30s Celsius with the humidex.
Gta
'Extremely dangerous' heat wave expected to hit Toronto. Here's when
The extra-hot stretch could trigger an official heat warning as temperatures are forecast to soar into the high 30s Celsius with the humidex.
The rising humidity comes with a blistering hot start to the summer, making forecasted, low 30-degree heat, feel closer to 40.
Humidity can make temperatures feel warmer, trapping moisture on your body and making it difficult to dry from sweat, according to Environment Canada.
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'Avoid working or exercising intensely if it is very hot or humid outside, and head for cooler conditions if your body becomes overheated,' the website reads.
The City of Toronto provides a map of 'cool spaces' throughout the city, where residents can find water fountains, splash pads, community centres and more.
'Today is a hot one, Toronto...Reminder: If you're heading out, we have a handy online map showing the status of washrooms, drinking fountains, bottle fillers, and dog fountains at all City of Toronto parks,' the city wrote in a post.
This year's humidex forecasts on June 18 read slightly higher than those in 2024, at highs of 34 C, according to Environment Canada records.
Also forecasted is a 40 per cent chance of thunderstorms this afternoon.
The correlation between humidity and thunder is expected, with moisture in the air creating a perfect environment for the raging storms, according to ClimateData.ca.
According to the Weather Network, rain is predicted to start in the GTA around 3 p.m. with a peak expected at 5 p.m., with a 'severe storm threat' still in effect for much of southern Ontario.
Environment Canada has not issued any weather alerts or statements for Toronto, but rainfall warning s are in effect for areas west of the city such as Hamilton and Stratford, Ont.