A Severe Thunderstorm Watch has been issued for Boone, Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, LaSalle, Lake, ...

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.

Today is partly sunny and hot! Highs will be in the upper 80s and low 90s with the heat index pushing to around 100!

Traffic circles prevent cars from zooming through residential intersections. They may annoy drivers, but they have proven ...

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

CHICAGO (WLS) -- An air quality alert was issued by the National Weather Service for the Chicago area. Chopper 7 captured as ...

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

Wednesday promises to be another hot, humid day. An Air Quality Alert continues, and there's a threat of storms.

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