The National Weather Service issued the second consecutive heat advisory for Lowcountry counties Wednesday morning.

New round of thunderstorm warnings issued for Colleton and Dorchester counties until 10:30 p.m. Update 8:53 p.m. – 3,259 ...

After a day of hot weather, the National Weather Service warns that Indianapolis could expect showers and thunderstorms throughout the evening.

More than 125 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

We are in the middle of a pretty rough heat wave. During the last 3 days we have had high temps well into the 90s. High Temps ...

More than 125 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

Meteorologist Tom Tasselmyer said it will be another Alert Day in Maryland with heat indexes across the region reaching 110 ...

Meteorologist Tom Tasselmyer said it will be an Alert Day amid an Extreme Heat Warning with temperatures soaring even higher than Monday.

Severe weather is moving through Michigan with a fresh batch of thunderstorms popping up around Metro Detroit this afternoon.

A heat wave hit much of the central U.S. over the weekend, while snow and cool temperatures arrived in the Northwest.

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

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