Skip to main content

The Globe and Mail

First heat alert of year for Toronto: Humidex alert for southern Ontario

In August 2009, Toronto set records with temperatures rising to 32 degrees celcius, with a humidex in the low forties. On Woodbine Beach in Toronto people were enjoying the heat.

Peter Power/Peter Power / The Globe and Mail

Toronto has issued its first heat alert of the year as much of southern Ontario is under a humidex advisory.

During a heat alert, people are asked to keep an eye on those who are at risk from heat related illnesses.

Precautions include drinking lots of fluids, staying out of the sun and going to places with air conditioning.

Story continues below advertisement

Environment Canada has issued a humidex advisory that stretches from Windsor and Sarnia, around the Golden Horseshoe to Ottawa and Cornwall and as far north as Algonquin and Grey-Bruce.

Humidex values neared 40 over parts of southwestern Ontario on Monday afternoon and the hot and humid air is expected to spread over the rest of the region today.

Temperatures are forecast to reach 32 C or higher and humidex values are likely to exceed 40 in many areas this afternoon. The only respite will be for people living near the Great Lakes where temperatures are expected to be 10 degrees cooler.

Report an error
Comments are closed

We have closed comments on this story for legal reasons. For more information on our commenting policies and how our community-based moderation works, please read our Community Guidelines and our Terms and Conditions.

Combined Shape Created with Sketch.

Combined Shape Created with Sketch.

Thank you!

You are now subscribed to the newsletter at

You can unsubscribe from this newsletter or Globe promotions at any time by clicking the link at the bottom of the newsletter, or by emailing us at