Much of the U.S. is facing either extreme heat or excessive rainfall and potential flooding on Tuesday. Here's where the ...

A heat wave will blast much of the eastern U.S. this week, and forecasters say temperatures will feel even hotter because of ...

A widespread heat wave is pushing dangerously high temperatures across large parts of the United States this week.

Heat index values are climbing into the triple digits across parts of the U.S. as southwest Texas faces a flash flood threat.

The U.S. is looking at an unwelcome birthday gift: a dangerous heat wave arriving ahead of the holiday weekend. Limited time: ...

Millions of Americans could soon face dangerous and potentially life-threatening conditions as a heat wave descends on the U.S.

An unseasonable heat wave gripping the western United States is projected to expand into the nation’s heartland on Wednesday and Thursday, sending temperatures soaring across portions of Texas. The ...

This Fourth of July, Americans may experience contrasting weather conditions, with a significant heat wave affecting the West ...

Most people know that heat waves can be dangerous. What they may not realize is that the heat indoors can be much worse than outdoors. When the power goes out and air conditioning stops, a house ...