Decatur County, IA Weather Forecast
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Decatur County Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Clearing | Sunny | Clear | Sunny | Partly Cloudy | Mostly Sunny | Clearing | Sunny |
| Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C |
| POP: 70% | POP: 90% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 627 PM CDT Wed Oct 14 2026 

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Issued: 705 PM CDT Wed Oct 14 2026
Key Messages
- Rain showers gradually move in southwest to northeast tonight, becoming more widespread rain during the day Thursday. Rain gradually ends in the west Thursday night with wrap-around showers possible through Friday afternoon in the north and east.
- Becoming windy and much cooler by Thursday night into Friday. Winds out of the north gusting to at least 35-45 mph at times.
- Frost is likely early Saturday with morning lows in the low to mid 30s.
- Gradually warming temperatures and dry condi...
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