National Weather Service United States Department of Commerce

Several waves of showers and thunderstorms are expected through tonight. Widespread rain amounts of 1-2" are expected for most of the area, with some isolated locations up to 4". The heaviest amounts are most likely across east central and southeast Missouri as well as southwest Illinois. This rainfall is much welcome given the moderate (D1) to severe (D2) drought conditions across the region.
Fall-like temperatures have been MIA for weeks. However, that looks to change starting on Sunday. Temperatures are expected to be much closer to normal with highs in the 60s/70s and lows in the 30s/40s. There may even be some frost Wednesday morning!