| NWS Forecast for: Brown County Issued by: National Weather Service Saint Louis, MO Last Update: 403 AM CDT Tue Jun 9 2026 | |
Today: Partly sunny. A chance of showers with a slight chance of thunderstorms this morning. Some thunderstorms may produce heavy rainfall this morning. Highs around 90. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 105 this afternoon. Tonight: Mostly clear. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Heat index values up to 106 early in the evening. Wednesday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. Heat index values up to 101. Wednesday Night: Mostly clear with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds 15 to 20 mph, diminishing to 5 to 10 mph after midnight. Chance of rain 50 percent. Heat index values up to 101 early in the evening. Thursday: Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. Heat index values up to 102. Thursday Night: Showers likely with a chance of thunderstorms in the evening. Lows in the lower 60s. Chance of rain 70 percent. Friday And Friday Night: Mostly clear. Highs in the mid 80s. Lows in the lower 60s. Saturday: Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. Saturday Night And Sunday: Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Highs around 80. Chance of rain 50 percent. Sunday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows around 60. Chance of rain 40 percent. Monday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent. | |
| Zone Forecast: Brown County | |
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