The heat index could reach more than 100 degrees on Monday and Tuesday, according to the National Weather Service.

Heat advisories are in effect from Monday to Wednesday across the Northeast, the National Weather Service said.

An intense heat wave threatens millions of people across the Southeast with temperatures reaching 115 degrees through midweek ...

The National Weather Service issued heat advisories for a large swath of the East Coast from central Florida to Virginia ...

The National Weather Service in Paducah has extended its dangerous heat warning, now forecasting extreme heat conditions to last through at least Wednesday. The updated advisory urges residents across ...

Nashville's NWS issues a Heat Advisory warning of extreme temperatures and high humidity until Wednesday evening.

As dangerous highs continue in central North Carolina, and heat index temperatures climb past 110 degrees all weekend, the ...

Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington could feel like 100 degrees or more.

Orlando heat wave triggers Heat Advisory with temperatures reaching mid to upper 90's and heat index up to 110°F.

A double whammy of wildfire smoke blowing into the city and an incoming heat wave has made the city's air dangerous for ...

The heat will be most severe along and southeast of the I-99/US-220 corridor, where heat index values are likely to exceed ...