You can save this article by registering for free here. Or sign-in if you have an account.
Patricia Torres of Toronto beats the heat at Port Stanley Beach in Port Stanley, Ont., on Monday, July 14, 2025. Photo by Derek Ruttan /Postmedia Network
Article content
Environment Canada has issued a heat warning for parts of southern Ontario starting Thursday, with temperatures expected to reach up to 35 C.
Advertisement 2
Story continues below
This advertisement has not loaded yet, but your article continues below.
THIS CONTENT IS RESERVED FOR SUBSCRIBERS ONLY
Subscribe now to read the latest news in your city and across Canada.
Unlimited online access to articles from across Canada with one account.
Get exclusive access to the Toronto Sun ePaper, an electronic replica of the print edition that you can share, download and comment on.
Enjoy insights and behind-the-scenes analysis from our award-winning journalists.
Support local journalists and the next generation of journalists.
Daily puzzles including the New York Times Crossword.
SUBSCRIBE TO UNLOCK MORE ARTICLES
Subscribe now to read the latest news in your city and across Canada.
Unlimited online access to articles from across Canada with one account.
Get exclusive access to the Toronto Sun ePaper, an electronic replica of the print edition that you can share, download and comment on.
Enjoy insights and behind-the-scenes analysis from our award-winning journalists.
Support local journalists and the next generation of journalists.
Daily puzzles including the New York Times Crossword.
REGISTER / SIGN IN TO UNLOCK MORE ARTICLES
Create an account or sign in to continue with your reading experience.
Access articles from across Canada with one account.
Share your thoughts and join the conversation in the comments.
Enjoy additional articles per month.
Get email updates from your favourite authors.
THIS ARTICLE IS FREE TO READ REGISTER TO UNLOCK.
Create an account or sign in to continue with your reading experience.
Access articles from across Canada with one account
Share your thoughts and join the conversation in the comments
It says while daytime high temperatures will not be as extreme on Friday and into the weekend, nighttime lows are expected to remain warm, providing little relief from heat.
Environment Canada says temperatures on Friday will be near 30 C, with a humidex of up to 40 C.
It’s not the first heat warning for Ontario this summer — extreme heat reaching the mid-30s broke temperature records in many parts of the province in June.
During extreme heat events, people are advised to drink water often, watch for signs of heat exhaustion and to check on older adults and those at risk of heat illness.
Postmedia is committed to maintaining a lively but civil forum for discussion. Please keep comments relevant and respectful. Comments may take up to an hour to appear on the site. You will receive an email if there is a reply to your comment, an update to a thread you follow or if a user you follow comments. Visit our Community Guidelines for more information.
This website uses cookies to personalize your content (including ads), and allows us to analyze our traffic. Read more about cookies here. By continuing to use our site, you agree to our Terms of Use and Privacy Policy.
Postmedia is committed to maintaining a lively but civil forum for discussion. Please keep comments relevant and respectful. Comments may take up to an hour to appear on the site. You will receive an email if there is a reply to your comment, an update to a thread you follow or if a user you follow comments. Visit our Community Guidelines for more information.