ST. LOUIS, MO (KTVI) - St. Louis enjoyed another sunny and warm day Tuesday with highs near 80°. But as much as we've enjoyed the change, we need to be able to dig our coats back out for Wednesday as our spring-like weather comes to an abrupt end overnight.
A storm system will bring rain and a few thunderstorms to the region starting Tuesday night, mainly after 8:00pm. Then, temperatures will fall sharply overnight, dropping almost 40° by early Wednesday morning thanks to strong north winds.
Rain will change over to sloppy, wet snow as temperatures dip to near the freezing point. The recent warm weather means ground temperatures are also warm and that should limit any accumulations. But there may be a build up on some grassy or elevated surfaces, especially north of I-70 in Missouri and Illinois.
The chance of snow ends by mid-morning Wednesday and St. Louis will see mostly cloudy skies and gusty winds through the afternoon. Highs Wednesday will be near 40°.