| NWS Forecast for: Clinton County Issued by: National Weather Service Saint Louis, MO Last Update: 1228 PM CST Sat Feb 21 2026 |  |
| This Afternoon: Mostly sunny. Highs around 40. Northwest winds around 10 mph. Tonight: Mostly clear. Lows in the lower 20s. Northwest winds 10 to 15 mph. Gusts up to 30 mph after midnight. Sunday: Mostly sunny and breezy. Highs in the lower 30s. Northwest winds 15 to 25 mph. Sunday Night: Partly cloudy. Lows around 16. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 1 above. Monday: Sunny. Highs in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 1 above in the morning. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 20. Tuesday And Tuesday Night: Mostly cloudy. Highs in the upper 40s. Lows around 40. Wednesday: Mostly cloudy. Highs in the upper 50s. Wednesday Night: Mostly cloudy with a 40 percent chance of rain. Lows in the mid 30s. Thursday: Mostly sunny with a 50 percent chance of rain. Highs in the upper 40s. Thursday Night And Friday: Mostly clear. Lows in the upper 20s. Highs in the mid 50s. | |
| Zone Forecast: Clinton County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |