Decatur Airport (DEC) 15 Day Weather Forecast, Decatur United States
Current weather conditions and 15 day weather forecast for Decatur Airport in Decatur, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at DEC
| 20 December 2025 Sat -4.4 ° C ( 24.1°F )  Clear |
Feels Like : -7.9 ° C / 17.8°F Humidity : % 81 Pressure : 1017 mb Wind Speed : 7.9 kmph / 4.9 miles from S 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Decatur Airport, Decatur, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Cloudy |
-9.7 ° C | -0.8 ° C | -4.7 ° C | % 77 | 38.5 km/h | 0% |
| 20 December 2025 Sat | Sunny |
-3.2 ° C | 6.5 ° C | 1 ° C | % 81 | 29.9 km/h | 0% |
| 21 December 2025 Sun | Sunny |
-3.1 ° C | 2.6 ° C | -0.7 ° C | % 71 | 15.1 km/h | 0% |
| 22 December 2025 Mon | Cloudy |
-1.8 ° C | 7.6 ° C | 1.9 ° C | % 76 | 18.7 km/h | 0% |
| 23 December 2025 Tue |  Partly Cloudy |
5.6 ° C | 13.1 ° C | 8.1 ° C | % 84 | 16.2 km/h | 0% |
| 24 December 2025 Wed |  Patchy rain nearby |
5.1 ° C | 11.2 ° C | 7.7 ° C | % 84 | 15.1 km/h | 73% |
| 25 December 2025 Thu | Patchy rain nearby |
15.2 ° C | 20.3 ° C | 17.3 ° C | % 87 | 31 km/h | 80% |
| 26 December 2025 Fri | Partly Cloudy |
9.5 ° C | 16.5 ° C | 14.6 ° C | % 71 | 27.7 km/h | 0% |
| 27 December 2025 Sat | Sunny |
4.5 ° C | 7.4 ° C | 6.2 ° C | % 70 | 19.4 km/h | 0% |
| 28 December 2025 Sun | Patchy rain nearby |
3.9 ° C | 6.8 ° C | 5.2 ° C | % 74 | 18.7 km/h | 89% |
| 29 December 2025 Mon |  Moderate rain |
4.1 ° C | 5.2 ° C | 4.9 ° C | % 92 | 18.4 km/h | 85% |
| 30 December 2025 Tue | Patchy rain nearby |
4.1 ° C | 6.3 ° C | 5.2 ° C | % 95 | 17.6 km/h | 88% |
| 31 December 2025 Wed | Patchy rain nearby |
1.8 ° C | 5.2 ° C | 3.9 ° C | % 94 | 23.8 km/h | 84% |
| 01 January 2026 Thu | Partly Cloudy |
0.3 ° C | 6.6 ° C | 2.9 ° C | % 79 | 18 km/h | 0% |
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