As a heat wave hits multiple U.S. states, some areas are have been placed under extreme heat watches and warnings.

We're hitting peak heat wave today, with a handful of Michigan counties forecast to be the hottest places in the state.

A family of 11, including six children, was rescued off the Holbert Trail on South Mountain in Phoenix during a hot summer ...

Each local National Weather Service office issues 3 different heat alerts to classify the appropriate level of risk posed by ...

San Diego faces hot weather with temperatures expected to surpass 110F, heightening the risk of heat-related illnesses.

An Extreme Heat Warning is in effect for most of Southern New England except the Berkshires. Heat impacts are expected Sunday ...