National Weather Service United States Department of Commerce

A couple rounds of thunderstorms, possibly severe, can be expected this afternoon and tonight, with showers and thunderstorms lingering into Saturday morning mainly east of I-55. Temperatures will be unseasonably warm today, then cool off Saturday into early next week. Highs in the 70s can be expected today, falling off into the 60s for Sunday through Tuesday. Overnight lows may drop below freezing Monday night, which could damage tender early season vegetation.
Two rounds of thunderstorms are expected for central IL today and tonight. The first will be from around 2 to 7 pm as a warm front lifts through the area. This could produce a few tornadoes, mainly north of I-72, as well as damaging wind gusts over 60 mph, isolated large hail over 1 inch diameter, and locally heavy rainfall. The second round will sweep west to east over the area late tonight as a cold front crosses the area, and could produce damaging wind gusts over 60 mph, isolated large hail, and locally heavy rainfall.