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 ...

Both alerts mean it’s dangerously hot. Both are signals to take immediate action to protect yourself from heat-related illnesses like heat exhaustion and heat stroke. Criteria can be lowered if it's ...

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

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