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

Chicago will see near-90 temperatures, high humidity, and poor air quality today, with storm chances returning tonight.

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

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 ...

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

Good afternoon, Chicago. Air quality alerts issued today in Illinois because of Canadian wildfire smoke marked the latest ...

As Canadian wildfire smoke lingers in the skies, the Chicago area will soon be under an air quality alert, but the smoke ...

An Illinois Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate ...

Illinois, Michigan, Wisconsin and Minnesota are under air quality alerts for unhealthy conditions as Canadian wildfire smoke ...

St. Louis and the entire state of Illinois will be under an air quality alert Friday due to wildfire smoke from Canada ...

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