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

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

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

More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

"Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors," an ...

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

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

AUSTIN (KXAN) — A microburst associated with a supercell thunderstorm moved through Austin on Wednesday, May 28. The National Weather Service in Austin/San Antonio surveyed the damage from the storm ...

Harris County offers an interactive flood map to help homebuyers assess flood risks. HOUSTON — As the Bayou City dries out ...

Sweltering 100-degree temperatures could be headed to central South Carolina early next week, according to the National ...