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

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

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high ...

Much of the country is facing brutal, potentially deadly heat. The reasons for such extreme events are not complicated.

At least nine states along the East Coast faced summer swelter on Monday, and the steamy weather is expected to persist on ...

Maps show where extreme humidity and 90- or 100-degree temperatures will affect about 255 million people across the United States.

As doctors and public officials tackle the rise in dangerous health effects, there are early efforts to assess heat’s ...

Extreme heat in Europe has been blamed for hundreds of deaths, a national monument has been shuttered in Greece and millions ...

Summer is underway and WA residents are turning on the fan or air conditioning. But can utility companies cut power if the ...

Because of the weather for several games, Chelsea head coach Enzo Maresca and midfielder Enzo Fernandez have criticized the U ...

The analysis looked at the heat wave that struck Europe last week, causing wildfires, closing schools and affecting infrastructure.

New research finds that not only will climate change make heat waves hotter and longer, but the lengthening of heat waves ...