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.

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

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

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

In an advisory, the NWS warned that portions of the three states are under flash flood warnings due to expected thunderstorms ...

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

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Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

The National Weather Service is warning Iowans of "dangerously hot and humid conditions" coming to the region this week, ...

The National Weather Service has issued an extreme heat watch, warning that as temperatures rise into the 90s, heat indices ...

More than 50 million Americans from Texas to Missouri were already under National Weather Service extreme heat warnings or ...