| NWS Forecast for: Brown County Issued by: National Weather Service Saint Louis, MO Last Update: 118 PM CDT Fri Jul 17 2026 |  |
| This Afternoon: Sunny with a slight chance of showers and thunderstorms. Near steady temperature in the upper 80s. West winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 100. Tonight: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Saturday: Sunny with highs in the lower 90s. West winds 5 to 10 mph. Heat index values up to 103. Saturday Night: Partly cloudy. A chance of thunderstorms with a slight chance of showers in the evening. Humid with lows in the lower 70s. West winds 5 to 10 mph, becoming northwest after midnight. Chance of rain 30 percent. Heat index values up to 102 early in the evening. Sunday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. East winds around 5 mph. Chance of rain 20 percent. Sunday Night And Monday: Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. Monday Night: Mostly clear with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. Tuesday And Tuesday Night: Mostly clear. Highs in the lower 90s. Lows in the mid 60s. Wednesday: Sunny. Highs in the mid 80s. Wednesday Night And Thursday: Partly cloudy. Lows in the lower 60s. Highs in the mid 80s. | |
| Zone Forecast: Brown County | |
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