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

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

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

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

According to the National Weather Service, the air quality alert remains in effect through midnight in parts of the Chicago ...

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

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

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 ...

Chicago faces an air quality alert due to Canadian wildfire smoke and high ozone levels, with risks for sensitive groups.

An air quality alert for the Chicago area was extended for a second time as smoke from Canadian wildfires lingers overhead ...

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 and some of southern ...