We are looking at a pretty mild day today, but could change quite a bit overnight tonight. We are looking at sunny skies today with a high of 56. There is a chance of showers and thunderstorms for tonight, mainly in the overnight hours, with a low of 46. The National Weather Service in St. Louis says isolated severe thunderstorms are possible across parts of west central Illinois after midnight. And, the NWS says the primary threat from any severe storms for tonight would be large hail.