St. Louis starts off clear and mild this morning around 66°F, but the calm will not last. Temperatures climb to about 84°F this afternoon with just a slight chance of a shower or thunderstorm after 11 a.m. The real action arrives Sunday night, May 31 into early Monday, June 1, when showers and thunderstorms are likely and could drop heavy rain in spots. Anyone banking on outdoor plans this evening should have a Plan B in case storms roll in around the evening commute.
Evening And Overnight: Storms Likely
Showers and thunderstorms are most likely before 10 p.m. Sunday, with additional storms redeveloping overnight into early Monday. A few storms could turn strong or isolated severe, with hail up to one inch, damaging wind gusts near 60 mph, and heavy rainfall that may trigger localized flooding, especially across parts of central and southeast Missouri. The chance of precipitation is about 80% Sunday night, although timing and coverage are still a bit uncertain, according to the National Weather Service St. Louis.
Monday And The Week Ahead
Monday, June 1 looks to start damp with a chance of showers mainly before 2 p.m., then skies should gradually turn sunnier with highs near 85°F. From Tuesday, June 2 through Thursday, June 4, the pattern flips to dry and pleasant, with highs in the low 80s before temperatures push into the upper 80s by Friday and Saturday. That sets up a short but welcome midweek window for outdoor plans once this round of storms moves out.
Commute And Safety Notes
If you have Sunday evening plans, allow extra travel time and be ready to move indoors quickly if lightning or strong winds pick up. Avoid driving through standing water — turn around, do not drown — and secure loose outdoor items before storms arrive. For the latest watches and any short term warnings, keep an eye on the National Weather Service St. Louis.
