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

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

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

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

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

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

The Chicago area has experienced several days of pleasant temperatures, but the mercury will be trending upward again in ...

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

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

Smoke from widespread Canadian wildfires has spread into the US, particularly affecting the Midwest and Northeast, leading to ...

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke ...

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