New York and Washington, D.C., could see temperatures surpass 90 degrees for up to a week. For people with ...

More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

How do you know it's not something more serious, like heat exhaustion? Doctors say heat exhaustion can sneak up on a person ...

NBC News chief consumer investigative correspondent Vicky Nguyen shared what the Department of Energy recommends you should ...

An extremely dangerous heat wave is predicted to hit the Midwest and the East Coast on Monday and Tuesday, with the National ...

The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather ...

An intense and nearly historic weather pattern is cooking much of America under a dangerous heat dome this week with ...

Friday is the 2025 summer solstice, or the first day of astronomical summer. And, right on time, National Weather Service ...

Baltimore is experiencing its hottest day in 2025 with temperatures reaching the upper 90s Monday as a heat wave develops in ...

Older people, outdoor workers and those experiencing homelessness are some of the groups more vulnerable to extreme heat.

Air conditioning units can be lifesaving during a summer heat wave, but there are other ways to help keep homes cool.