National Weather Service United States Department of Commerce

Look for mild temperatures and rainy conditions today and Tuesday. Highs will be in the 60s to 70s. Rain showers and isolated thunderstorms will continue today, tonight, and tomorrow. A cold front will then move through the area tomorrow night.
Much needed rainfall is on the way. Showers with a few thunderstorms have already developed across portions of the area this morning. Periods of showers and thunderstorms are expected today and into Tuesday. Rain will continue Tuesday Night into Wednesday, possibly changing to freezing rain across parts of central and northeast Missouri and west-central Illinois. Rainfall totals of 1 to over 3 inches are forecast through Wednesday.
Rain is forecast to change to freezing rain from north to south on Tuesday night into Wednesday morning as colder air moves southward in the wake of a cold front. Currently the greatest probability of the changeover to freezing rain is across northeast and central Missouri into west central Illinois. The current forecast calls for the potential for ice accumulation of up to a tenth of an inch. The probability and amount of any ice from freezing rain is highly dependent on surface temperatures and this could change quite a bit in coming days – stay tuned!