| NWS Forecast for: Marion County Issued by: National Weather Service Saint Louis, MO Last Update: 843 AM CDT Wed Jun 10 2026 |  |
| Today: Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 50 percent. Tonight: Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 35 mph, becoming south 5 to 10 mph with gusts up to 25 mph after midnight. Chance of rain 50 percent. Thursday: Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs around 90. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. Heat index values up to 101. Thursday Night: Mostly cloudy with showers and thunderstorms in the evening, then mostly clear after midnight. Cooler with lows around 60. West winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 5 mph after midnight. Chance of rain 80 percent. Friday: Sunny. Highs in the lower 80s. West winds 5 to 10 mph. Friday Night: Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent. Saturday: Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent. Saturday Night: A chance of thunderstorms. Showers. Lows in the mid 60s. Chance of rain 80 percent. Sunday: Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. A 30 percent chance of showers. Lows in the upper 50s. Monday Through Tuesday: Partly cloudy with a slight chance of showers and thunderstorms. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 20 percent. | |
| Zone Forecast: Marion County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |