| NWS Forecast for: Lewis County Issued by: National Weather Service Saint Louis, MO Last Update: 838 AM CDT Fri Apr 17 2026 | |
Today: Mostly sunny. Thunderstorms likely with a chance of showers this afternoon. Highs in the mid 80s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. Tonight: Thunderstorms, showers. Much cooler. Less humid with lows in the lower 40s. Southwest winds 15 to 20 mph, becoming northwest 10 to 15 mph after midnight. Chance of rain near 100 percent. Saturday: Sunny. A slight chance of showers in the morning. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. Saturday Night: Mostly clear. Lows in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight. Sunday: Sunny. Highs in the lower 60s. West winds 10 to 15 mph. Sunday Night And Monday: Mostly clear. Lows around 40. Highs in the upper 60s. Monday Night: Clear in the evening, then becoming partly cloudy. Not as cool with lows in the lower 50s. Tuesday: Mostly sunny. Highs in the mid 70s. Tuesday Night And Wednesday: Mostly clear. Lows in the mid 50s. Highs in the upper 70s. Wednesday Night: Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent. Thursday: Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent. | |
| Zone Forecast: Lewis County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |