St. Louis, Missouri – After back-to-back sunny spring days, St. Louis is in for a weather shift midweek as thunderstorms build into the area by Thursday. Expect a sharp increase in rain chances starting Wednesday night, with storms likely during peak travel hours Thursday and Friday.
According to the National Weather Service in St. Louis, Tuesday and Wednesday will bring unseasonably warm, dry weather, with highs near 78°F and 80°F and calm winds. But a developing system will increase the chance of thunderstorms after 1 a.m. Thursday, kicking off a wet stretch that could affect drivers along I-64, Route 40, and into the downtown corridor.
Thursday’s storm chances rise to 60%, especially after 1 p.m., while Friday brings an 80% likelihood of showers and possible thunderstorms. With several inches of rainfall possible over 36 hours, minor street flooding and reduced visibility could impact morning and evening commutes.
Residents are urged to secure outdoor items, clean storm drains, and monitor alerts, particularly in flood-prone neighborhoods. While severe weather is not yet certain, timing and intensity could shift, prompting further advisories from the NWS.
Extended 5-Day Forecast for St. Louis, MO:
- Tuesday: Sunny, high near 78°F.
- Wednesday: Mostly sunny, high near 80°F.
- Thursday: 60% chance of thunderstorms after 1 p.m., high near 80°F.
- Friday: 80% chance of rain and storms, high near 77°F.
- Saturday: 30% chance of showers, high near 73°F.
