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

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 issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

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

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

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

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

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

An air quality alert in the Chicago area has been extended for another day as Canadian wildfire smoke continues to plague the ...

CHICAGO (WLS) -- An air quality alert has been extended for part of the Chicago area through Thursday. The alert for McHenry, Lake, Kane, DuPage, Kendall, Grundy, Cook and Will counties in Illinois ...