Toronto to Experience Temporary Relief from Wildfire Smoke on Monday, But Return Expected Soon
Toronto enjoys a brief air quality respite as weather shifts temporarily clear wildfire smoke, but ominous weather patterns threaten to bring heavier pollution back by midweek.

Toronto is set to experience a brief respite from the wildfire smoke that has lingered over southern Ontario, but city officials warn that this window of clearer air will be short-lived. Residents have endured days of diminished air quality and hazy skies as thick smoke wafted into the region late last week, prompting advisories and outdoor activity restrictions for vulnerable populations.
Meteorologists say that a significant shift in wind patterns on Monday should sweep away much of the trapped low-level smoke that has settled over the city and surrounding areas. This temporary clearing is expected to bring some improvement in air quality, allowing residents to breathe easier—at least for now. However, experts caution that these favourable conditions are not expected to last beyond the day.
The relief comes with a caveat: by Tuesday, weather models indicate another change in wind direction, which will once again funnel wildfire smoke from fires burning in northern regions directly into southern Ontario. Conditions could deteriorate further by Wednesday, as stronger winds threaten to drive even heavier concentrations of smoke over the densely populated corridor around the Great Lakes.
Since last Thursday, a persistent blanket of smoke has led to elevated air pollution levels across communities throughout southern Ontario. Sensitive groups, including children, seniors, and those with respiratory or heart conditions, have been advised to take precautions as air quality indices reached concerning levels.
In Toronto, Monday’s forecast calls for mainly cloudy skies and a 40 percent chance of morning showers. A few more showers could develop near noon before dissipating later in the afternoon, with the possibility of thunderstorms adding to unsettled conditions. Temperatures are expected to reach a high of 20 °C, offering a mild yet muggy start to the week.
Looking ahead to Tuesday, temperatures are set to climb slightly, peaking at a daytime high of 22 °C. With humidity increasing and the UV index projected to rise to 7, residents are urged to take precautions both to limit sun exposure and to prepare for the return of smoky conditions. Forecasters estimate another 40 percent chance of showers in the afternoon, which may do little to alleviate the incoming air quality concerns.
Weather specialists encourage the public to stay updated on the latest forecasts and advisories as conditions continue to evolve rapidly, emphasizing the importance of monitoring air quality indexes and heeding health warnings during periods of heavy smoke. While a brief reprieve is on the horizon, the threat of worsening smoke looms as wildfires remain active across the country, highlighting the ongoing challenges posed by extreme fire seasons.