What is the forecast for southern Ontario?

The smoke is expected to ease on Thursday, with air quality improving and skies clearing up. However, residents are still under a "moderate risk" warning and are urged to take precautions, especially those with heart and lung conditions.

How can Toronto residents protect themselves from the wildfire smoke?

Experts recommend keeping windows closed, using air filters, and wearing well-fitting respirator-type masks when going outside to reduce exposure to the fine particles in the smoke.

Home / Weather / Wildfire Smoke Chokes Southern Ontario, Residents Advised to Stay Indoors

Wildfire Smoke Chokes Southern Ontario, Residents Advised to Stay Indoors

Q: How is the wildfire smoke affecting Toronto?

The wildfire smoke has led to dangerously high levels of PM2.5 pollution in Toronto, causing the city to regularly appear on the world's worst air quality list. Residents are advised to limit outdoor activities and watch for symptoms like coughing or a sore throat.

6 Aug

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Summary

Wildfire smoke drifting into Toronto and southern Ontario
Air quality expected to improve on Thursday
Residents urged to limit outdoor activities, especially those with heart/lung conditions

Wildfire Smoke Chokes Southern Ontario, Residents Advised to Stay Indoors

As of August 7th, 2025, residents of Toronto and southern Ontario have been dealing with the lingering effects of wildfire smoke that has drifted into the region. The haze, which has caused the area to regularly appear on the world's worst air quality list, is expected to ease on Thursday.

According to air quality data, the smoke has led to dangerously high levels of PM2.5, a pollutant commonly found in wildfire smoke. These fine particles can be absorbed into the bloodstream, making the situation particularly harmful for those with heart and lung conditions.

Environment Canada has issued a "moderate risk" warning, urging residents to consider rescheduling outdoor activities and watch for symptoms like coughing or a sore throat. Experts advise keeping windows closed and using air filters to minimize exposure to the pollutants.

While the skies are expected to clear up on Thursday, the impact of the wildfire smoke has already been felt across the region. Authorities are closely monitoring the situation and providing guidance to help residents stay safe and healthy during this challenging time.

Disclaimer: This story has been auto-aggregated and auto-summarised by a computer program. This story has not been edited or created by the Feedzop team.