| NWS Forecast for: Brown County Issued by: National Weather Service Saint Louis, MO Last Update: 1038 PM CDT Wed Sep 9 2026 | |
| Overnight: Mostly cloudy with a chance of thunderstorms. A chance of showers late this evening, then showers likely. Near steady temperature in the upper 60s. Light and variable winds. Chance of rain 70 percent. Thursday: Showers with a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. West winds around 5 mph, becoming north around 5 mph in the afternoon. Chance of rain near 100 percent. Thursday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. Northeast winds around 5 mph. Friday: Mostly sunny. Highs in the lower 80s. Southeast winds around 5 mph. Friday Night: Mostly clear. A slight chance of showers after midnight. Lows in the mid 60s. Southeast winds around 5 mph. Chance of rain 20 percent. Saturday: Mostly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent. Saturday Night: Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent. Sunday: Partly sunny. A slight chance of showers in the morning. Highs in the mid 80s. Chance of rain 20 percent. Sunday Night: Partly cloudy in the evening, then clearing. Lows in the upper 60s. Monday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. Monday Night: Mostly clear with a chance of showers and thunderstorms in the evening, then partly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 60 percent. Tuesday: A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Cooler with highs around 80. Chance of rain 50 percent. Tuesday Night And Wednesday: Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent. | |
| Zone Forecast: Brown County | |
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