From the National Weather Service:
A late season winter storm will bring significant snowfall to central and southeast Illinois today into tonight. An area of low pressure will strengthen over southern Missouri early today, then track along the Ohio River through tonight. This will produce snow, becoming heavy at times, continuing through the day today and into tonight. Current indications suggest the potential for 6 to 9 inches of heavy wet snow could fall, especially along and south of a line from Lewistown to Lexington. Locally higher amounts will be possible in areas that experience thunder snow, which looks to concentrate along and south of a line from Beardstown to Lincoln to Hoopeston.
The winds are expected to be northeast at 15 to 25mph with gusts to 30 mph, becoming north to northwest tonight. Due to the heavy wet nature of the snow, blowing snow is not expected today, but some blowing snow will be possible tonight as the temperatures cool and the snow becomes drier.
Snow covered and hazardous roadways will be the primary impact of this event. Roads may be slushy at times today, as temperatures will be in the lower to mid 30s. As temperatures fall into the 20s this evening, the slush will freeze and cause additional icy conditions.
People planning travel today and tonight should check for later updates on this late season Winter Storm.