Heat domes are caused by high-pressure systems that trap air near the surface of the Earth, sealing in hot, humid air and ...

Extreme heat warnings are in effect for parts of Arkansas, Missouri, Illinois, Kentucky, Tennessee, Mississippi and Louisiana.

A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ ...

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every ...

CNN is tracking extreme heat conditions for Americans each day. See where the risks are greatest — and where high temperature records might be broken.

United States, geographic regions, colored political map. Five regions, according to their geographic position on the continent. Common but unofficial way of referring to regions of the United States.

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Cleveland, United States throughout the world ...

Sweltering heat happens every summer, but to get close to the bar of a state's all-time hottest temperature usually takes a heat wave that's on another level.

Parts of U.S. hit record high temperatures amid extreme heat About 128 million Americans from Louisiana to Maine are under heat advisories Wednesday amid a severe heat wave impacting much of the U.S.

A major heat wave will persist through the end of the week in some areas of the country. Here's what to do while the temperatures remain high.