| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 809 PM CDT Sat Oct 31 2026 | |
| Tonight: Cloudy with a 50 percent chance of rain. Lows in the upper 50s. Southeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Sunday: Cloudy. Patchy fog in the morning. A chance of rain, mainly in the morning. Highs in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Sunday Night: Cloudy. Patchy fog after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph. Monday: Patchy fog in the morning. Cloudy. Highs in the lower 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Monday Night: Cloudy. A chance of showers after midnight. Lows in the lower 60s. South winds 15 to 20 mph. Chance of rain 50 percent. Tuesday: Showers likely with a slight chance of thunderstorms in the morning, then showers in the afternoon. Highs in the lower 70s. Chance of rain 80 percent. Tuesday Night: Showers likely with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 70 percent. Wednesday: Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 50 percent. Wednesday Night: A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the upper 40s. Chance of rain 20 percent. Thursday And Thursday Night: Partly cloudy. A 20 percent chance of showers. Highs in the mid 60s. Lows in the mid 40s. Friday Through Saturday: Mostly cloudy. Highs in the mid 60s. Lows in the lower 40s. | |
| Zone Forecast: St. Clair County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |