An air quality alert was issued Thursday by the National Weather Service for the entire Chicago area through Friday night.

Illinois air quality today The Illinois Environmental Protection Agency has called for an Air Quality Action Day through midnight Friday due to high levels of Fine Particles PM 2.5 in the air.

An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather officials said. Officials issued an alert Wednesday as air quality was ...

PEORIA — For the second day in a row, all of central Illinois is under an air quality alert because of wildfire smoke filtering down from Canada.. As of Wednesday morning, most of Illinois was ...

Air quality alerts have been issued for Friday for southern Illinois and southwest Indiana. Poor air quality can be hazardous to anyone, especially those who are extra sensitive to poor air ...

CHICAGO, ILLINOIS – JUNE 03: An aerial view shows smoke from Canadian wildfires dimming the downtown skyline on June 03, 2025 in Chicago, Illinois. The smoke is causing air quality alerts in ...

An air quality alert has been issued for all of northern Illinois on Friday, with elevated ozone and pollutant levels posing a hazard to sensitive groups and young children.

Air quality alerts continue to roll out across the Midwest. As the smog-like conditions continue to fill the skies, there are a few key maps to show the extent and severity of the wildfire smoke.

The Chicago area is under an air quality alert until Friday night due to the Canadian wildfire smoke. 24/7 Live Chicago & Suburban Cook Co. North Suburbs West Suburbs South Suburbs NW Indiana ...

Smoke from the Canadian wildfires continued to obscure the sunshine at midday, prompting an Air Quality Alert to be issued for Chicagoland until midnight Thursday (see more below). Below, the view ...