Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts ...

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy ...

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

Air quality alerts issued Thursday in Illinois because of Canadian wildfire smoke marked the latest bout in an increasingly ...

National Weather Service officials called an air quality alert in effect until midnight as well as a beach hazard warning.

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

Smoke from Canadian wildfires has returned to Central Illinois bringing significant reductions in air quality to Central ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.

While an air quality alert continues for parts of the Midwest due to smoke from Canadian wildfires, northeastern Illinois was ...

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.