National Weather Service United States Department of Commerce

A warming trend begins today, and will peak on Thursday when widespread high temperatures in the 80s are expected. A sharp cold front will bring showers and thunderstorms Thursday night, possibly severe, followed by another surge of much cooler air.
A sharp cold front is expected to bring widespread showers and thunderstorms Thursday evening. Some of these will be strong to severe, with a level 2 severe weather risk over most of central and southeast Illinois. Similar to this past Sunday, the unseasonably warm temperatures will suppress storm development for a time, so there is some uncertainty in the extent of the severe weather thret. Continue to monitor later updates as we get closer to Thursday.