St. Louis, MO – Residents and commuters in eastern Missouri and southwest Illinois are bracing for scattered thunderstorms as the first full day of fall begins Tuesday, September 23. Officials are warning that wet roads and possible delays are likely as showers move through the region.
Timing and Intensity of Storms
The National Weather Service in St. Louis reports that storms are most likely Tuesday afternoon and evening, particularly across St. Louis and Metro East communities. Forecasters are warning of:
- Brief heavy rain
- Gusty winds
- Reduced visibility on major highways including Interstates 55, 64, and 70
“Drivers should allow extra travel time and ensure headlights are on during rain to stay safe,” the NWS advised.
Midweek Rain Chances
Rainfall chances remain elevated through midweek, with thunderstorms possibly redeveloping Wednesday, followed by additional showers Thursday. Scattered rainfall means some areas may experience repeated downpours, while other locations may stay drier. Currently, spotter activation is not expected.
Seasonal Temperatures
Temperatures are expected to remain seasonable, with highs in the upper 70s to low 80s and lows in the 60s. The weather pattern indicates a classic fall transition, mixing warm, humid air with cooler incoming fronts.
5-Day Forecast for St. Louis and Metro East
- Tuesday, Sept. 23: Showers and storms, high near 81°F, low around 68°F
- Wednesday, Sept. 24: More storms possible, high near 77°F, low near 63°F
- Thursday, Sept. 25: Chance of showers, partly sunny, high near 75°F, low near 61°F
- Friday, Sept. 26: Mostly clear skies, high near 80°F, low near 63°F
- Saturday, Sept. 27: Sunny and warmer, high near 84°F
Safety and Travel Tips
Local authorities remind residents to:
- Drive cautiously on wet roads
- Check weather updates regularly
- Prepare for sudden downpours during afternoon and evening hours
Staying informed and cautious will help commuters and residents navigate wet conditions safely as eastern Missouri and southwest Illinois experience early fall storms.
How are you planning to handle this week’s weather? Share your tips and experiences in the comments below.
