| NWS Forecast for: St. Clair County Issued by: National Weather Service Saint Louis, MO Last Update: 428 AM CST Thu Jan 15 2026 | |
| Today: Sunny. Highs in the mid 30s. Northwest winds 5 to 10 mph, becoming southwest this afternoon. Tonight: Mostly cloudy. A chance of snow in the evening. Not as cool. Near steady temperature in the lower 30s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of snow 50 percent. Friday: Partly sunny in the morning, then becoming mostly cloudy. Highs in the mid 40s. West winds 10 to 15 mph with gusts up to 30 mph. Friday Night: Mostly cloudy with scattered snow showers. Lows in the lower 20s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 50 percent. Saturday: Partly sunny. Much cooler with highs in the mid 20s. West winds 10 to 15 mph with gusts up to 25 mph. Saturday Night Through Martin Luther King Jr Day: Partly cloudy. Lows 10 to 15. Highs in the mid 20s. Wind chill values as low as 5 below. Monday Night And Tuesday: Mostly clear. Lows around 10 above. Highs in the lower 30s. Wind chill values as low as zero. Tuesday Night And Wednesday: Partly cloudy. Lows around 20. Highs in the mid 40s. | |
| Zone Forecast: St. Clair County | |
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