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

"There is high confidence that heat will reach levels that would affect anyone without sufficient cooling." Over 50 million ...

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

The advisory, expected to last from noon to 8 p.m., spans several areas including Cook, Dekalb, McHenry and DuPage counties, ...

Nearly half the US will wilt under hot, sticky conditions through the bulk of the week as temperatures and humidity soar from Chicago to New York City and New Orleans, boosting power demand and ...

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 ...

Extreme heat is in the forecast for the Chicago area Monday, and some storms popped up. A Severe Thunderstorm Warning for parts of the area has expired. ABC7 Chicago AccuWeather meteorologist Mark ...

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

Chicago is in store for a hot and humid start to the week. Cook County, as well as areas of surrounding DuPage, Kane, Lake, McHenry and Will counties and Northwest Indiana, were under a heat advisory ...

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

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