St. Louis, MO – Dry and warm conditions will hold through the weekend, but storms arriving late Sunday could quickly disrupt travel and lead to stronger impacts by Monday across eastern Missouri.
According to the National Weather Service in St. Louis, rain chances increase after 6 p.m. Sunday, with scattered thunderstorms developing and continuing overnight. The threat escalates Monday, when storm coverage rises to 60–80% and conditions may support severe thunderstorms.
The St. Louis metro, including areas along I-64, I-44, and I-70, could see repeated rounds of rain and storms Monday afternoon into the evening. High temperatures will reach 75 to 83 degrees, adding instability that could fuel stronger storms. While exact timing is still being refined, the setup supports heavy rainfall and the potential for damaging winds.
Localized flooding may develop where storms track over the same locations, especially in low-lying roads and urban areas prone to water buildup. Commuters should prepare for slower travel during both the Monday morning and evening drive windows.
Residents are urged to monitor updates, charge devices ahead of storms, and avoid driving through flooded roadways. Storm chances continue into Monday night, and additional alerts may be issued as confidence in timing and severity increases.
