| NWS Forecast for: Boone County Issued by: National Weather Service Saint Louis, MO Last Update: 503 PM CST Fri Feb 20 2026 | |
| Tonight: Partly cloudy this evening, then mostly cloudy with a chance of flurries after midnight. Lows in the upper 20s. North winds 5 to 10 mph. Saturday: Mostly cloudy with a chance of flurries in the morning, then partly sunny in the afternoon. Highs in the upper 30s. Northwest winds 5 to 10 mph. Saturday Night: Mostly clear. Lows in the lower 20s. Northwest winds 10 to 15 mph. Sunday: Sunny. Highs in the mid 30s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Sunday Night: Mostly clear. Lows around 13. Northwest winds 5 to 10 mph with gusts up to 25 mph. Wind chill values as low as 1 above. Monday: Sunny. Highs in the lower 30s. Wind chill values as low as zero in the morning. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. Tuesday And Tuesday Night: Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s. Wednesday And Wednesday Night: Mostly cloudy. Highs in the upper 60s. Lows in the lower 30s. Thursday: Mostly sunny. Cooler with highs in the mid 50s. Thursday Night And Friday: Mostly clear. Lows in the upper 30s. Highs in the upper 60s. | |
| Zone Forecast: Boone County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |