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

Several central Illinois counties are under an Extreme Heat Watch, with NWS warning of "dangerously hot and humid conditions.

The National Weather Service issued Extreme Heat Watches and Flood Advisories throughout Illinois. Here's the forecast.

Corn sweat is an agricultural phenomenon that makes humidity during a heat wave even worse, especially in states like ...

We're keeping a close watch on the heat across Southern Illinois. A dome of high pressure is locked in place, bringing us ...

What is "corn sweat," and how does it contribute to rising heat and humidity in Illinois? See what experts say.

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

Another round of excessive heat is on the way through much of the United States next week, with heat indices predicted to reach 110 degrees Fahrenheit ...

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

The heat wave in Illinois is finally lightening up, if only a little bit, leading some Illinois residents to wonder what the weather will be like on the Fourth of July.