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 "heat dome" has developed on the East Coast that could send temperatures to 100 degrees in Boston this week. As a result, ...

The organization announced it will open 10 stations in the Valley where anyone in need can go for indoor cooling and hydration.

The National Weather Service has issued an extreme heat warning for the second consecutive day, with the temperature expected ...

Just this week, nearly 160 million citizens were under some kind of heat alert Tuesday. The Centers for Disease Control and Prevention is the government agency that keeps track of heat-related deaths ...

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 ...

Central Park last had a 100-degree day on July 18, 2012, and hasn’t seen a triple-digit temperature in June since 1952.

Temperatures and humidity are climbing as the tri-state heads into a possibly record-shattering heat wave, where it could ...