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City of Decatur, INDecatur, IN 7-Day Weather Forecast
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Decatur Weather Forecast
Decatur, IN Weather Forecast Date: 1258 AM EDT Thu Oct 08 2026
Weather forecast for Decatur, IN
Tonight Lo: 51°F Lo: 11°C |
Tonight... Clear. Lows in the lower 50s. West winds around 5 mph. |
Thu Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Thursday... Sunny. Highs in the lower 70s. West winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. |
| Fri Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Friday... Mostly sunny. Highs in the mid 70s. South winds around 5 mph. |
Sat Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Saturday... Mostly sunny in the morning, then becoming partly cloudy. Highs around 80. |
Sun Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Sunday... Showers with a slight chance of thunderstorms. Highs in the upper 60s. Chance of rain 80%. |
| Columbus Day Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Columbus Day... Partly cloudy in the morning, then becoming mostly sunny. Highs in the upper 70s. |
Tue Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Tuesday... Partly cloudy with a 20% chance of showers. Highs around 70. |
Decatur Radar Loop
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