Forecasters say isolated thunderstorm cells could become strong enough to produce small hail and wind gusts that could topple ...

The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it ...

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.

NYC and the surrounding area could face their first heat wave of the season next week, as the first day of summer arrives.

The Lehigh Valley and much of eastern Pennsylvania are under an extreme heat warning with temperatures near 100 degrees ...

With New York under an extreme heat warning, the Mets took extra precautions Monday. Those included a later report time for ...