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

Canadian wildfire smoke is drifiting across Michigan. As of July 31, the entire state is under an advisory for unhealthy air.

CHICAGO (WLS) -- Most of the Chicago area remains under an Air Quality Alert on Saturday due to smoke from Canadian wildfires ...

Last week, Canadian wildfire smoke blanketed Wisconsin and caused the Air Quality Index to reach the unhealthy level for ...

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

On Friday at 9:41 p.m. EDT an air quality alert was reported by the National Weather Service in effect until Sunday at ...

The National Weather Service in Chicago says air quality across Illinois is being affected by Canadian wildfire smoke.

Due to the smoke from Canadian wildfires, the Nebraska Department of Health and Human Services has issued a smoke advisory ...

Click here to view this video from wjfw.com.

An air quality alert will be in effect across the entire state until 5 p.m. Aug. 2, according to the Minnesota Pollution ...

Nelson Agri-Center Ace Hardware kicked off Ace Bucket Days Friday while honoring a 10-year-old Children's Miracle Network ...

Smoke is expected to cause red/unhealthy air quality index (AQI) concentrations, affecting everyone in the state. Sensitive ...