Tens of millions of people across the Midwest and East braced Sunday for another sweltering day of dangerously hot ...

A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and ...

As the official start of summer arrives, the United States is being hit by a dangerous heat wave, making this the first ...

Extreme humidity and heat will affect around 265 million people across the country this week. Maps show where and when to ...

The Earth, climate scientists worry, may be reaching a tipping point, especially as the Trump administration works to roll ...

Over 140 million Americans will be under the highest-level extreme heat alerts by Sunday during a wave of above-average ...

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

A significant and intense heat wave is set to engulf the central and eastern United States, delivering the highest ...

High temperatures across the Plains, Midwest, Mid-Atlantic and Northeast are expected to hit at least 15 degrees above normal ...

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

Heat is the top cause of weather-related deaths in the United States, according to the Centers for Disease Control. As the ...