| NWS Forecast for: Marion County Issued by: National Weather Service Saint Louis, MO Last Update: 128 PM CDT Tue Aug 4 2026 | |
| This Afternoon: Sunny. Near steady temperature in the mid 80s. Southeast winds around 5 mph. Tonight: Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph. Wednesday: Sunny. Highs in the upper 80s. South winds 5 to 10 mph. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows around 70. South winds around 5 mph. Chance of rain 50 percent. Thursday: Showers and thunderstorms likely, mainly in the morning. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 70 percent. Thursday Night And Friday: Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Highs in the mid 80s. Chance of rain 50 percent. Friday Night: Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms. A chance of showers. Lows in the upper 60s. Chance of rain 50 percent. Saturday: Mostly sunny. Highs in the upper 80s. Heat index values up to 100 in the afternoon. Saturday Night: Mostly clear. Lows in the lower 70s. Sunday: Mostly sunny. Highs around 90. Heat index values up to 105 in the afternoon. Sunday Night And Monday: Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 110. | |
| Zone Forecast: Marion County | |
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