Meteorologists say a phenomenon known as a heat dome, a large area of high pressure in the upper atmosphere that traps heat ...

The Painesville Electric Plant will generate power from June 23-25 to counter potential cost increases during the heat wave, the city announced in a news release. The city said power costs often ...

New York City’s mayoral primary on Tuesday will land in the middle of a life-threatening heat wave — leaving some candidates ...

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

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

Record-smashing daytime temperatures near 100 degrees are expected for millions from the Plains to the East Coast this week, ...

The heat wave is expected to continue into the week putting millions of Americans in the Midwest and Northeast under heat ...

Heat advisories and extreme heat watches are in place across much of the U.S., lasting until Tuesday with the potential to be ...

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

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

A rare and dangerous heatwave is sweeping across the United States, pushing temperatures into the triple digits across major ...