Environment Canada has issued special air quality statements for multiple regions across northeastern Ontario and beyond.

Environment Canada has issued a Special Air Quality Statement for Toronto, warning that drifting wildfire smoke is expected ...

Environment Canada says the spread of smoke from wildfires on the Prairies has resulted in poor air quality and reduced ...

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at least the third day.

TODAY: Mostly sunny with less haze, and temperatures in the upper 70s, possibly reaching 80 degrees. Winds will be light out of the east at 5 to 10 mph. TOMORROW: Temperatures rise into the 80s for ...

The air quality warning will likely extend into tonight, and possibly Monday, as wildfire smoke from Canada and from western parts of the United States lingers over parts of the Plains and the Midwest ...

Tonight will be a bit hazy, but clear and cool with lows in the 50s. Wildfire smoke looks to turn even thicker on Sunday.

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those breathing it.

Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.