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

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

An "extreme heat warning" has officially been issued for nine major U.S. cities on Monday, June 23. The National Weather ...

An "extremely dangerous" tornado could hit a U.S. state on Sunday evening. The National Weather Service is warning of a ...

After weeks of relatively cool and rainy weather occasionally punctuated by a stray warm, sunny day, extreme summer heat has ...

The heat is no joke and this year, it's impacting a large portion of the U.S. Here's what to know about heat stroke, ...

A dangerous heat wave could break records in Massachusetts this week as temperatures climb well over 100 degrees.

We simply cannot stress this enough: it will be dangerously hot the next three days,” the National Weather Service posted ...

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

CHICAGO (WLS) -- The Chicago area will be undergoing another day of extreme heat Monday. A National Weather Service Extreme ...

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

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