The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat ...

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

Sensitive groups are advised to stay indoors and limit outdoor activities as pollution and ozone levels spike to unhealthy ...

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know ...

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

Air Quality Alerts are in effect for Chicago area and in Indiana, Wisconsin. By Jessica D'Onofrio, Mark Rivera, Karen Jordan, and Liz Nagy. Thursday, June 29, 2023.

The National Weather Service has issued an air quality alert for parts of the Midwest including the Chicago area as unhealthy smoke from Canadian wildfires continues to move south. The alert, issued ...

The National Weather Service’s Chicago office attributed the alert to unhealthy ozone levels and lingering effects of smoke from wildfires in Canada.

Chicago faces an extreme heat watch with temperatures expected to reach mid-90s and heat indexes up to 115 degrees.

An Air Quality Alert has been issued through Tuesday for the Chicago area from wildfire smoke coming in from Canada.

Be careful out in the extremely hot temps 03:43. CHICAGO (CBS) -- Record heat and sunshine led to an air quality alert Monday in the Chicago area as ozone pollution climbs to unhealthy levels for ...

CHICAGO (WLS) -- An air quality alert was extended through Wednesday by the National Weather Service for the Chicago area.