National Weather Service United States Department of Commerce

Patchy dense fog will continue across much of central and southeast IL early this morning. If traveling, be prepared for areas of very poor visibility and rapid changes in visibility. Fog is expected to dissipate by mid morning.
Unseasonably mild temperatures can be expected in central and southeast IL through Thursday, with daily highs in the 50s and 60s. Morning fog will dissipate today, becoming partly cloudy for the afternoon. The next chance for rain is Tuesday night, then another chance for rain and thunderstorms arrives Thursday.