| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 933 AM CST Thu Dec 11 2025 | |
| Rest Of Today: Cloudy. A chance of snow this afternoon. Cooler with highs in the mid 30s. South winds 5 to 10 mph. Chance of snow 50 percent. Tonight: Mostly cloudy. Near steady temperature in the lower 30s. Southeast winds 5 to 10 mph with gusts up to 20 mph, becoming northeast after midnight. Friday: Mostly cloudy. Highs in the upper 30s. Northwest winds 5 to 10 mph. Friday Night: Mostly cloudy. Lows in the lower 20s. Northwest winds 5 to 10 mph. Saturday: Cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Cooler with highs in the upper 20s. Temperature falling into the lower 20s in the afternoon. North winds 5 to 10 mph. Chance of snow 50 percent. Saturday Night: Mostly cloudy in the evening, then clearing. Much colder with lows around zero. Wind chill values as low as 15 below after midnight. Sunday And Sunday Night: Mostly clear. Highs around 15. Lows zero to 10 above zero. Wind chill values as low as 15 below. Monday: Sunny. Not as cool with highs in the upper 30s. Wind chill values as low as 5 below in the morning. Monday Night And Tuesday: Partly cloudy. Lows in the mid 20s. Highs in the mid 40s. Tuesday Night And Wednesday: Mostly cloudy. Lows in the mid 30s. Highs in the lower 50s. | |
| Zone Forecast: St. Clair County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |