| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 1207 AM CDT Tue Sep 30 2025 | |
| Rest Of Tonight: Mostly clear. Lows around 60. North winds around 5 mph. Tuesday: Sunny. Highs in the upper 80s. Northeast winds 5 to 10 mph. Tuesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph. Wednesday: Partly sunny. Highs in the mid 80s. East winds around 5 mph. Wednesday Night: Mostly cloudy. Lows in the lower 60s. East winds around 5 mph. Thursday And Thursday Night: Mostly clear. Highs in the upper 80s. Lows in the lower 60s. Friday Through Saturday: Clear. Highs in the upper 80s. Lows in the lower 60s. Saturday Night Through Monday: Mostly clear. Lows in the lower 60s. Highs in the mid 80s. | |
| Zone Forecast: St. Clair County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |