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

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

Dangerously hot conditions, with heat index values locally higher than 110 degrees, are expected. A Weather Impact Alert ...

The National Weather Service has issued an extreme heat watch for portions of northern and central Illinois from Wednesday ...

The National Weather Service in St. Louis has placed Franklin County under an Extreme Heat Warning through Thursday, 7 p.m.

St. Louis faces an Extreme Heat Warning with a high near 97°F and heat index values up to 107, along with potential severe ...

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

The National Weather Service has issued an extreme heat warning for Southeast Missouri and Southwest Illinois, with heat ...

With extreme heat warnings in effect across major U.S. cities, officials urge residents to prioritize safety and hydration ...

NWS issues Extreme Heat Warning in St. Louis, advising precautions against high heat index values up to 116 degrees.

The extreme heat warning in effect since Monday has finally expired, but a heat advisory is still in place for the region ...

A vicious heatwave is spreading across the United States, with extreme heat alerts issues across multiple states including ...