The possible hazards include damaging winds, large hail, an isolated tornado, and torrential downpours. Dew points and ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

A clash of air masses on Wednesday will result in the threat of severe storms from Milwaukee and Chicago westward to Denver and the eastern Rockies.

Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

An air quality alert was extended through Wednesday by the National Weather Service for the Chicago area. ABC7 Chicago is now streaming 24/7. Click here to watch Chopper 7 captured as smoke from ...

Severe storms threaten Chicago, Milwaukee, and Denver on Wednesday as a clash of air masses brings the risk of damaging winds, hail, flash flooding, and even isolated tornadoes. The wet weather is ...

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

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

As smoke from Canadian wildfires worsens air quality in Illinois, Dr. Brady Scott from Rush University explains how it ...