Another heat dome is moving over Illinois this week as temperatures near the triple digits. Here's what that means and when ...

A heat advisory has been issued for all of Chicagoland on Wednesday and Thursday as temperatures and humidity spike.

A heat dome dries out the ground and air above it, which deters thunderstorms, but means drought can begin or worsen. A heat ...

Here’s what else you need to know to get up to speed and on with your day. The heat is on — and millions are about to feel it ...

Heat domes are caused by high-pressure systems that trap air near the surface of the Earth, sealing in hot, humid air and ...

Dangerous temperatures will persist across parts of the U.S. through July, and in some areas, there's an unexpected ...

Hot and humid conditions in the Midwest will be exacerbated this week by what experts describe as a “corn sweat.” ...

“Thursday remains on track to be the hottest day of the week; a heat advisory will likely be needed as the heat index reaches ...

The National Weather Service already has issued extreme heat warnings, watches and advisories across a swath of the Midwest ...

The big weather story this week is a large area of high pressure building over the central U.S., often called a “heat dome,” ...

Temperatures are expected to hit over 100 degrees Fahrenheit during the day in multiple areas including parts of Nebraska, ...

Almost 85 million Americans from South Dakota to Texas and North Carolina to Florida are already under extreme heat warnings, ...