Rain on Saturday is expected to change over to snow Saturday evening across portions of northeast and central Missouri as well as west central Illinois as colder air filters southeastward into our area behind a cold front. By late evening or during the overnight hours the rain will change over to sleet, and then over to snow by late Saturday night or early Sunday morning across east central and southeast Missouri as well as southwest Illinois. This wintry mix may create hazardous driving conditions as the temperature drops below the freezing mark.   (Please visit http://weather.gov/lsx for more information.)