St. Louis, MO – Midweek plans could be interrupted as thunderstorms roll into eastern Missouri and southwest Illinois Wednesday afternoon, with the strongest storms expected after 1 p.m. Some slow-moving cells could drop heavy rain, creating localized flooding on roadways.
According to the National Weather Service in St. Louis, the chance of storms will build through the afternoon, with peak activity likely between 1 p.m. and 7 p.m. Areas at highest risk include downtown St. Louis, St. Charles, and Metro East communities along the Mississippi River. Gusty winds and brief downpours could reduce visibility for drivers during the evening commute.
Daily storm chances continue through Sunday, though Thursday looks to be the sunniest and driest day of the stretch. Residents with outdoor work or events may want to plan around Wednesday’s unsettled weather. If traveling, be prepared for sudden heavy rain, and avoid driving through flooded intersections.
Conditions should clear Wednesday night, with sunny skies returning Thursday before heat and humidity rise again Friday into the weekend. More advisories could be issued if storm activity intensifies midweek.
Five Day St. Louis, MO Forecast:
- Tuesday Night: Partly cloudy, slight chance of storms. Low 72°F.
- Wednesday: 30% chance of thunderstorms after 1 p.m., locally heavy rain possible. High 89°F, low 70°F.
- Thursday: Sunny and dry. High 91°F, low 74°F.
- Friday: Sunny and hot. High 95°F, low 75°F.
- Saturday: Partly cloudy, high near 97°F.
