More than 165 million Americans are on alert for dangerous heat and humidity from Nebraska to New Hampshire and Florida.

Two New York City subway lines were shut down due to a power outage near the peak of the Tuesday morning rush as thousands of ...

More than 250 million people in the U.S.—nearly three quarters of the population—are experiencing moderate, major or extreme ...

More than 150 million people across the United States are under major or extreme heat risks this week. Southern portions of ...

The National Weather Service already has issued extreme heat warnings, watches and advisories across a swath of the Midwest ...

Summer heat just got turned up a notch − and trapped under a lid. About 100 million people will see 100-degree days the rest ...

For people under the sweltering influence of a heat dome, the weather pattern can be excruciatingly tedious to endure, ...

More than 100 million Americans are under heat alerts as the extreme temperatures that have smothered the Midwest this week ...

Thursday will bring rain--and Friday and the weekend are looking like a deep breath of fresh air for West Virginia ...

Heading to Disney World, Universal or any of Florida's other major theme parks? Make sure you're prepared for battling the heat, see tips.