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

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

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

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 is affecting much of the central and eastern U.S., creating high levels of heat and humidity. What to know in ...

Harford County is opening 11 cooling centers for those looking for a reprieve from the extreme heat in Maryland this week.

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

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

It'll be very hot, but what conditions are required for the extreme heat warning that much of New Hampshire is under? Matt ...

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

Meteorologist Ava Marie says it will be an Alert Day amid an Extreme Heat Warning with temperatures reaching 100 degrees — ...

The National Weather Service has issued an extreme heat warning for most of Southern New England with the temperature ...