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

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

Air quality alerts issued Thursday in Illinois because of Canadian wildfire smoke marked the latest bout in an increasingly common summer occurrence. The alert covers 34 Illinois counties designated ...

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

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

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.

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

The Air Quality Alert has been extended for both Wisconsin and Illinois through Friday, lasting until Noon for southern Wisconsin and Friday night for northern Illinois. Significant impacts from ...

While air quality was in the "unhealthy for sensitive groups" category in Chicago, it was even worse in some suburbs.

A lot of the Great lakes, including the Stateline, is under an air quality alert this morning. The portion that contains the Illinois area runs until midnight tonight whereas the portion ...