St. Louis, Missouri – Clear skies in St. Louis won’t last past midweek as a spring storm pattern builds into eastern Missouri by Thursday afternoon, bringing widespread showers and thunderstorms just in time for the weekend.
According to the National Weather Service in St. Louis, Wednesday will hold steady with sunny skies and a high near 79°F, but a moisture-rich system moves in Thursday afternoon. Rain chances jump from 30% Thursday to 80% by Friday, with thunderstorms likely Thursday night into early Friday. The heaviest rain could impact morning commutes on Highway 64 and I-70, where flash flooding may become an issue.
By Friday, highs will stay near 79°F, but scattered thunderstorms and downpours could disrupt outdoor plans and slow traffic. Drivers are urged to avoid low-lying roads and check alerts from MoDOT. The National Weather Service warns of additional thunderstorm chances through Monday, particularly in the afternoons and evenings.
Thursday night’s low will hover around 63°F with thunderstorms possibly continuing after 1 a.m. Friday’s rainfall will taper into the night, but Saturday and Sunday bring a 20-30% chance of lingering spring showers. Highs remain in the mid-to-upper 70s through the weekend.
Five-Day Outlook for St. Louis:
- Wednesday: Sunny, high 79°F
- Thursday: 30% chance of showers, high 82°F
- Friday: 80% chance of thunderstorms, high 79°F
- Saturday: 20% chance of showers, high 72°F
- Sunday: 30% chance of storms, high 75°F
