Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington could feel like 100 degrees or more.

A phenomenon called "corn sweat" could exacerbate the impacts of the extreme heat blanketing a large portion of the U.S., ...

A heat dome happens when hot air is trapped over an area due to a persistent high pressure system, William Gallus, a ...

The extreme heat and pollution is also worsening air quality, triggering air quality alerts for New York and parts of the ...

The extreme heat is prompting several warnings for the NYC area today, including a heat advisory and an air quality alert.

At least 100 Americans are on alert for dangerous heat and humidity -- stretching from Texas to Maine -- on Friday.

While triple-digit heat is not uncommon in the Big Bend and South Georgia during the summer months, it is still important to ...

Sweltering and "dangerous" heat with indices surpassing 100 degrees Fahrenheit across parts of nine states has prompted the ...

As we endure an extreme heat watch, it’s important to keep in mind some perennial heat safety tips to make sure you don’t ...