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

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

"Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors," an ...

Heat dome will cause dangerously high temperatures in many places across the country this weekend, especially the Midwest and ...

The US South is used to heat, but it's going to be dangerously hot this week. Memphis, for example, will see highs in the middle to upper 90s with a heat index between 110-115 degrees Fahrenheit ...

Heat wave roasting East Coast this week 02:21. The U.S. has contended with unrelenting temperatures this summer, and a map from NASA paints a dire picture of the scale of those persistent heat waves.

More than half the country, including Illinois, is currently in a heat dome. Here's what that means and how to stay safe ...

Brendon Haggerty with the Multnomah County Health Department shows a new heat map of Portland on Wednesday. “In areas where we see warmer spots, we can target those for tree planting for example ...

The US South is used to heat, but it's going to be dangerously hot this week. Memphis, for example, will see highs in the middle to upper 90s with a heat index between 110-115 degrees Fahrenheit ...