National Weather Service United States Department of Commerce

Severe Thunderstorms in the Northern Plains; Heavy Rainfall in the Mississippi and Tennessee Valleys; Critical Fire Weather in the Southwest

Severe thunderstorms, with a significant wind threat, will continue through tonight across the northern Plains. Wind gusts of 60 to 100 mph are possible. Heavy rainfall will continue through tonight from Oklahoma into Missouri, and in the Tennessee Valley through Monday. Critical fire weather conditions continue in the Southwest through Tuesday. Read More >

Here is a look at the time windows for severe weather today.
There is a threat for strong (EF-2+) tornadoes across northern Illinois and southern Wisconsin today between 4 and 8 PM. The highest threat will be in the dark red shaded area. Take tornado warnings seriously, and have multiple ways to get warning information today.
Here's a look at individual hazard breakdown today.