More than 125 million Americans were under the highest level of extreme heat alerts during a wave of above-average ...

We made it! After several record-breaking days with excessive heat in the Philadelphia region, including the first day with ...

As previous disasters have laid bare the US’ vulnerabilities to other types of extreme weather, this week is revealing ...

When and where will the heat wane? Where does extreme heat remain? Large sections of the eastern half of the country still ...

The temperature in New York City has reached 100 degrees as the eastern U.S. sweltered under an extreme heat wave.

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 ...

By Tuesday night — following the fourth hottest day on record in Boston — Mass General’s emergency department was slammed.

Another steamy day is on tap for Wednesday, but there's a risk of isolated thunderstorms that could pack small hail and ...

It is the second year in a row that a heat wave has hit the New York City region earlier than usual, as global warming is ...

Travelers were reportedly evacuated from Northeast Regional Amtrak Train 94 after being stuck for more than an hour in the ...

Fourth of July is less than two weeks away. Will the heat wave be over by then? Here's the forecast for Illinois.

Forecasters say isolated thunderstorm cells could become strong enough to produce small hail and wind gusts that could topple ...