Toronto's Hazy Sky Is From The Alberta Wildfires & It Could Impact Ontario's Weather Forecast

You can expect to see colourful sunsets.

​Sunrise in Grimsby, Ontario. Right: Sun in Northern Ontario.

Sunrise in Grimsby, Ontario. Right: Sun in Northern Ontario.

Associate Editor

As Alberta battles ongoing wildfires, some of its effects are being felt as far east as Ontario.

Hazy skies and smoke have descended over the province, and it may even delay the arrival of warmer weather.

The smoke from the wildfires is high in the atmosphere and is likely to cause a slight cooling effect around the Greater Toronto Area, Geoff Coulson, a meteorologist from Environment Canada, told Narcity in an interview.

"The sunlight coming down, part of that is absorbed or reflected at high elevations by the forest fire smoke, so not as much sunlight reaches the surface to warm the ground," Coulson explained.

Coulson also noted that shifts in the winds could potentially move the smoke to other areas.

The effects of the smoke are already being felt, according to storm chaser Mark Robinson from The Weather Network, who posted a video of hazy skies in Guelph, Ontario, on Reddit.

from ontario

"If you are sensitive to it, you may be noticing burning eyes, maybe even a tickle in your throat, maybe a little bit of coughing," he said. While the smoke is not expected to have a significant impact on air quality, it is causing discomfort for some.

Robinson also noted that the smoke is visible in places like Guelph and may impact the forecast for the week.

"It is going to make a mess of our forecast as we get later into the week, and [we can't] quite get those warm temperatures like we were expecting," he said.

Despite the impact of the smoke, the weather pattern for the Great Lakes region looks relatively quiet, with fair weather expected in the GTA, according to Coulson.

Temperatures are expected to be warmer than usual over Mother's Day weekend, with only Sunday expected to be around seasonal temperature, with the week seeing a high of 25 C and a low of 5 C.

The forecast for the next week or so is mostly sunny, with slightly above-seasonal temperatures that may drop back down, Coulson said.

While the wildfire smoke may continue to linger in the atmosphere, there is currently no significant impact on surface air quality in the GTA.

This article's cover image was used for illustrative purposes only.

  • Associate Editor

    Rhythm Sachdeva (she/her) was a Toronto-based Associate Editor at Narcity Media. She has previously reported for CTV News, The Canadian Press, the Toronto Star and the Times of India, where she published several A1 features and breaking news stories for national audiences. Rhythm graduated from the University of Toronto with an honours bachelor of arts degree in journalism and also holds a graduate certificate in contemporary journalism from Centennial College. At university, she was the managing editor of her campus magazine, The Underground. She's passionate about writing about the diverse immigrant community in Toronto and is always on the hunt for unique human interest stories.

8 Ontario snow laws you might not know you can get fined up to $2,000 for breaking

Some of them also have time limits — so you'd better get shovelling. ❄️⏳

11 Air Canada jobs that pay up to $44 an hour and get you travel perks

You don't have to travel for work to get these travel perks! ✈️

8 bucket-list destinations Canadians are actually urged to avoid in 2026

Your 2026 bucket list might need some editing. 👀