7-Day Zone Forecast for Marion County (Text-Only)
NWS Forecast for: Marion County
Issued by: National Weather Service Saint Louis, MO
Last Update: 1128 AM CDT Wed Aug 19 2026
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This Afternoon: Mostly cloudy. A slight chance of showers and thunderstorms early, then a chance of showers and thunderstorms. Highs around 80. South winds around 5 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 50 percent.

Thursday: Patchy fog in the morning. Mostly sunny. Highs in the lower 80s. Northeast winds around 5 mph.

Thursday Night: Mostly clear. Lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable.

Friday: Sunny. Highs in the mid 80s. Southwest winds around 5 mph.

Friday Night: Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 40 percent.

Saturday: Sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 80s. Chance of rain 20 percent.

Saturday Night: Mostly clear. Lows in the mid 60s.

Sunday: Mostly sunny. Highs around 80.

Sunday Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent.

Monday Through Tuesday: Partly cloudy. Highs in the mid 80s. Lows in the mid 60s.







Zone Forecast: Marion County

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