A strong warm front moving up Illinois will whip up thunderstorms and possibly hail today, but the worst weather is expected to hit downstate.
The National Weather Service said there is a slight chance of damaging winds and even a brief tornado south of the front, where temperatures will climb into the 60s or lower 70s.
The front is expected to stall just south of Interstate 80, with thunderstorms developing over west central Illinois and moving north between 2 p.m. and 10 p.m., the weather service said.
There is a moderate risk of severe storms and possible tornadoes in portions of Tennessee, Mississippi and Alabama, according to the Chicago Weather Center.
For the rest of the week in the Chicago area, there is a chance of showers every day, with highs ranging from the 60s today and Tuesday to 40s and 50 through the weekend.
The Chicago Tribune contributed to this report.
For more information visit the CHICAGO WEATHER CENTER.