| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 1200 PM CST Sat Jan 10 2026 | |
| This Afternoon: Sunny. Highs in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Tonight: Partly cloudy with rain showers likely with a slight chance of snow showers in the evening, then mostly clear with a chance of flurries after midnight. Cooler with lows in the mid 20s. Northwest winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 60 percent. Sunday: Sunny. Highs in the upper 30s. Northwest winds 15 to 20 mph. Sunday Night: Mostly clear. Lows in the mid 20s. Southwest winds 5 to 10 mph. Monday: Sunny. Not as cool with highs in the lower 50s. Southwest winds 5 to 10 mph. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the upper 30s. Tuesday And Tuesday Night: Mostly cloudy. Highs in the upper 50s. Lows in the upper 30s. Wednesday: Mostly cloudy. A slight chance of rain in the afternoon. Much cooler with highs in the mid 40s. Temperature falling into the upper 30s in the afternoon. Chance of rain 20 percent. Wednesday Night And Thursday: Partly cloudy. Lows in the lower 20s. Highs in the upper 30s. Thursday Night And Friday: Mostly cloudy. Lows in the upper 20s. Highs in the mid 40s. | |
| Zone Forecast: St. Clair County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |