| NWS Forecast for: Lewis County Issued by: National Weather Service Saint Louis, MO Last Update: 1039 PM CDT Wed Jun 18 2025 | |
Rest Of Tonight: Mostly cloudy with a chance of showers with a slight chance of thunderstorms late this evening, then partly cloudy. Lows in the lower 60s. West winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 50 percent. Juneteenth: Sunny. Highs in the mid 80s. West winds 5 to 10 mph. Thursday Night: Mostly clear. Lows in the mid 60s. Southwest winds 5 to 10 mph. Friday: Mostly sunny. Highs in the upper 80s. South winds 10 to 15 mph with gusts up to 30 mph. Friday Night: Mostly clear. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 30 mph. Saturday Through Sunday Night: Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. Monday And Monday Night: Mostly clear. Highs in the lower 90s. Lows in the lower 70s. Heat index values up to 100. Tuesday And Tuesday Night: Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100. Wednesday: Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 40 percent. | |
| Zone Forecast: Lewis County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |