Monday’s heat advisory is set to expire at 8 p.m. The advisory cautioned heat index values of up to 109 degrees.

But before that, the chance for severe weather along with dangerous heat and humidity were in the forecast Monday as part of ...

CHICAGO - Today, temperatures are in the 80s and 90s with heat index values in the upper 90s to about 105. There is a heat ...

Severe thunderstorms could continue into July 29, bringing havoc to morning commutes in Chicago, Milwaukee and Indianapolis.

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CHICAGO (WLS) -- Extreme heat is in the forecast for the Chicago area Monday. ABC7 Accuweather Meteorologist Mark McGinnis ...

Rush University Medical Center's AC system failed, leading to surgery cancellations and diversion of ambulances.

Extreme heat is the deadliest weather-related hazard in the U.S., claiming roughly 2,000 people annually, according to data from the CDC.

The Chicago area is in what is called a "ring of fire" weather pattern for the start of the work week -- and it could mean quick changes in conditions.

A chilled water line in the 14-story, butterfly-shaped tower broke early Monday. It has since been repaired, but temperatures ...

Illinois' number one music festival is set to take over Chicago's Grant Park this weekend, with Lollapalooza's star-studded lineup drawing crowds in the hundreds of thousands. The festival is only ...