| NWS Forecast for: Warren County Issued by: National Weather Service Saint Louis, MO Last Update: 818 AM CDT Tue Jun 23 2026 |  |
| Today: Sunny. Highs around 80. Light and variable winds, becoming east around 5 mph this afternoon. Tonight: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. Southeast winds around 5 mph. Wednesday: Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. South winds around 5 mph. Chance of rain 50 percent. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 60s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Thursday: Partly sunny with a chance of showers and thunderstorms in the morning, then mostly cloudy with showers and thunderstorms likely in the afternoon. Highs in the lower 80s. Light and variable winds, becoming southeast around 5 mph in the afternoon. Chance of rain 70 percent. Thursday Night And Friday: Showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 80 percent. Friday Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. Saturday: Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent. Saturday Night: Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Sunday Through Monday: Mostly clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. | |
| Zone Forecast: Warren County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |