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 ...

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 ...

The intensifying and expansive heat wave affecting around 150 million people in the United States from Wisconsin to ...

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 ...