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

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

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.

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

The Chicago area is under an extreme heat warning until very late Monday night. Temperatures during the day Monday are ...

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

An extreme heat warning was issued by the National Weather Service in Mount Holly at 11:03 a.m. on Monday, June 23.

WE ARE UNDER AN EXTREME HEAT WARNING IN THE SUSQUEHANNA VALLEY TODAY. THAT MEANS THE HEAT PLUS THE HIGH HUMIDITY IS GOING TO ...

An extreme heat warning goes into effect at 10 a.m. Monday and runs through 8 p.m. with heat index values expected to reach ...

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