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Brown County Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | |  |  |  | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C |
| POP: 90% | POP: 100% | POP: 70% | POP: 60% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 542 AM CDT Tue Sep 15 2026 
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Issued: 603 AM CDT Tue Sep 15 2026
Key Messages
- Thunderstorms increase in coverage from north to south this afternoon and evening. There remains a marginal risk for severe storms mainly for damaging winds.
- Rain becomes widespread overnight with repeated rounds of heavy rainfall potentially leading to flooding. Flood Watch remains in effect for most areas north of I-70.
- Rain ends by mid-day Wednesday with warmer and drier conditions through the end of the work week. Another rain chance comes for the weekend with cooler temperatures...