| NWS Forecast for: Brown County Issued by: National Weather Service Saint Louis, MO Last Update: 147 AM CDT Tue Sep 15 2026 |  |
| Rest Of Tonight: Partly cloudy and not as cool. Near steady temperature in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. Tuesday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph, becoming west in the afternoon. Gusts up to 25 mph. Chance of rain 50 percent. Heat index values up to 103. Tuesday Night: Showers likely with a chance of thunderstorms. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. Wednesday: Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Highs in the upper 80s. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 50 percent. Wednesday Night: Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Thursday: Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs around 90. Chance of rain 20 percent. Heat index values up to 100. Thursday Night And Friday: Partly cloudy. Lows around 70. Highs around 90. Friday Night: Mostly clear. Lows in the lower 70s. Saturday: Mostly sunny with a 20 percent chance of showers. Highs in the upper 80s. Saturday Night: Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent. Sunday And Sunday Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Lows in the lower 60s. Chance of rain 40 percent. Monday: Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent. | |
| Zone Forecast: Brown County | |
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