More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

An "extremely dangerous heat wave" is continuing to scorch a huge area of the eastern United States June 23, affecting tens ...

An "extremely dangerous heat wave" is continuing to scorch a huge area of the eastern United States June 23, affecting tens ...

Heat doesn’t just mean canceled events. It also poses a health risk. If you can’t afford to cool the whole house, make a ...

A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

More than 37 million Americans are under heat advisories across the U.S., according to the National Weather Service. Here's ...

An extremely dangerous heat wave is underway for the eastern half of the United States, with Tuesday expected to bring peak ...

An intense and nearly historic weather pattern is cooking much of America in a dangerous heat dome this week with ...

Extreme heat is the deadliest weather-related hazard in the United States, leading to more fatalities than natural disasters ...

A dangerous heat wave is currently baking the eastern two-thirds of the United States with extreme temperatures in the mid-to ...

An intense heat wave is about to hit the central and eastern United States, putting millions of Americans to the test.

Those triple-digit air temperatures — with the feels-like index even worse because of humidity — are possible in places where ...