| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 443 AM CST Sat Nov 14 2026 | |
| Today: Sunny. Highs around 50. Northwest winds around 5 mph. Tonight: Clear. Lows in the mid 20s. North winds around 5 mph. Sunday: Sunny. Highs in the lower 50s. Northeast winds around 5 mph. Sunday Night: Clear. Lows in the upper 20s. Northeast winds around 5 mph in the evening, becoming light and variable. Monday: Sunny. Highs in the mid 50s. Light and variable winds. Monday Night Through Tuesday Night: Clear. Lows in the lower 30s. Highs in the upper 50s. Wednesday: Sunny. Highs in the lower 60s. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Not as cool with lows in the lower 40s. Thursday And Thursday Night: Mostly cloudy. Highs in the mid 60s. Lows in the upper 40s. Friday: Partly sunny. A slight chance of rain in the morning. Highs in the upper 60s. Chance of rain 20 percent. | |
| Zone Forecast: St. Clair County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |