National Weather Service United States Department of Commerce

A clear, chilly early May night is in store tonight. Lows in the mid 30s to low 40s are forecast. Some areas of frost are expected, mainly in favored valleys across portions of central and southeast Missouri. Some tender vegetation may be impacted by frost in these areas.
Mostly dry conditions with variable cloudiness and warmer temperatures are expected on Sunday. Rain chances along with a few thunderstorms returns Sunday evening/night.
After a warm start to the week, cool to chilly conditions are forecast midweek. Rain chances peak on Tuesday, with mostly dry weather favored to end the work week.
April was a warm one across the region with all three area climate sites ending the month far above average. St. Louis finished with its 3rd warmest April on record, Columbia its 4th, and Quincy its 6th. April also featured wetter than average conditions, with all three climate sites setting at least one daily precipitation record while Quincy experienced its 3rd wettest April on record.