| NWS Forecast for: Boone County Issued by: National Weather Service Saint Louis, MO Last Update: 417 AM CDT Sun Mar 22 2026 |  |
Today: Mostly sunny this morning, then becoming mostly cloudy. Cooler with highs in the lower 80s. Temperature falling into the lower 70s this afternoon. Southwest winds 5 to 10 mph with gusts up to 25 mph, increasing to north 15 to 20 mph with gusts up to 35 mph this afternoon. Tonight: Partly cloudy in the evening, then clearing. Much cooler with lows in the upper 30s. North winds 15 to 20 mph. Gusts up to 35 mph in the evening. Monday: Partly sunny. Much cooler with highs in the mid 50s. Northeast winds 5 to 10 mph. Monday Night: Mostly cloudy. Lows around 40. East winds around 5 mph. Tuesday: Mostly sunny. Not as cool with highs in the upper 60s. Southeast winds 5 to 10 mph. Tuesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Wednesday: Mostly sunny. Not as cool with highs in the lower 80s. Wednesday Night: Mostly clear. Not as cool with lows in the lower 60s. Thursday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. Thursday Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Much cooler with lows in the lower 40s. Chance of rain 50 percent. Friday: Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers in the afternoon. Much cooler with highs in the lower 50s. Chance of rain 50 percent. Friday Night: Partly cloudy in the evening, then clearing. A 20 percent chance of rain showers. Lows in the lower 30s. Saturday: Mostly sunny. Highs in the upper 50s. | |
| Zone Forecast: Boone County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |