The National Weather Service in Green Bay predicts a peak heat index of 101 in Green Bay and 98 in Appleton. The high ...

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

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

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

Forecasters warn of 100- to 105-degree heat index values through Tuesday, with potential storms offering limited relief.

Sweltering and "dangerous" heat with indices surpassing 100 degrees Fahrenheit across parts of nine states has prompted the ...

Raleigh faces an Extreme Heat Warning with heat index values up to 115 degrees; residents are urged to stay cool and hydrated ...

The National Weather Service released an updated extreme heat warning at 12:53 p.m. on Friday in effect until 9 p.m. for ...

Isolated thunderstorms are in the forecast for Sunday, followed by increasing heat and humidity Monday and Tuesday, according ...

Air temperature, dew point, heat index… all words that are thrown around by the K-X Storm Team during the heat of summer.