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

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

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

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

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

A day full of exploring Central Illinois emergency gadgets and gizmos has been rescheduled to July 30 because of the heat.

Farmers at the Champaign County Fair are taking extra measures to take care of their animals at livestock competitions amid ...

A sweltering heat wave will bring dangerously hot conditions to the Chicago area this week, the NBC 5 Storm Team said.

Dangerous heat continues across northern Illinois through Thursday, with heat indices potentially reaching 105 to 109 degrees ...

Matt Friedlein with the National Weather Service said shaded areas, like grassy parks or under tree canopies, can be up to 10 degrees cooler than paved surfaces.