Extreme heat blanketed the Chicago area with heat index readings up to 110 on Thursday. Severe storms almost moved through ...

With extreme heat warnings in effect across major U.S. cities, officials urge residents to prioritize safety and hydration ...

A dangerous heat wave blasted parts of the Northeast on Friday, sending "feels-like" temperatures well over 100 degrees and producing the risk for severe storms.

The spike in the wholesale cost of electricity, which ComEd buys at an annual auction and then passes on to its customers, ...