Weather WorldDecatur, IA 7-Day Weather Forecast
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Decatur Weather Forecast
Decatur, IA Weather Forecast Date: 158 AM CDT Sun Oct 04 2026
Weather forecast for Decatur, IA
Tonight Lo: 50°F Lo: 10°C |
Tonight... Clear. Near steady temperature in the lower 50s. West winds around 5 mph. |
Sun Hi: 71°FHi: 22°C Lo: 45°F Lo: 7°C |
Sunday... Sunny. Highs in the lower 70s. North winds 5 to 10 mph. |
| Mon Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Monday... Sunny. Highs in the upper 60s. Southeast winds around 5 mph. |
| Tue Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Tuesday... Sunny. Highs in the mid 70s. |
| Wed Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Wednesday... Sunny. Highs in the mid 70s. |
Thu Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Thursday... Sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 70s. Chance of rain 20%. |
Fri Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Friday... Sunny with a 20% chance of showers. Highs in the lower 70s. |
Decatur Radar Loop
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