Duncan Weather Forecast 15 Days, Weather in Duncan Today
Current weather conditions and 15 day weather forecast for Duncan, Iowa, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Duncan
| 14 December 2025 Sunday -15.9 ° C / 3.4°F  Clear |
Feels Like : -23.4 ° C / -10.1°F Humidity : % 71 Pressure : 1032 mb Wind Speed : 13 kmph / 8.1 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Duncan, IA, USA
Weather Forecast for next 15 Days for Duncan including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Duncan, Iowa state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 14 December 2025 Sunday | Sunny |
-22.9 ° C (-9.2°F) |
-14.1 ° C (6.6°F) |
-17.9 ° C (-0.2°F) |
% 75 | 0% | 0.4 | Sunrise:07:40 AM Sunset: 04:40 PM |
Moonrise:02:35 AM Moonset: 01:20 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Partly Cloudy |
-12.1 ° C (10.3°F) |
-3.4 ° C (25.9°F) |
-7.4 ° C (18.7°F) |
% 85 | 0% | 0.3 | Sunrise:07:40 AM Sunset: 04:41 PM |
Moonrise:03:39 AM Moonset: 01:41 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Overcast |
-5.3 ° C (22.5°F) |
-0.1 ° C (31.8°F) |
-2.6 ° C (27.3°F) |
% 96 | 0% | 0.4 | Sunrise:07:41 AM Sunset: 04:41 PM |
Moonrise:04:43 AM Moonset: 02:06 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Mist |
-4.8 ° C (23.3°F) |
0.9 ° C (33.6°F) |
-0.3 ° C (31.5°F) |
% 91 | 61% | 0.3 | Sunrise:07:42 AM Sunset: 04:41 PM |
Moonrise:05:47 AM Moonset: 02:37 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Patchy rain nearby |
-5 ° C (23°F) |
4 ° C (39.2°F) |
1.7 ° C (35.1°F) |
% 76 | 85% | 0 | Sunrise:07:42 AM Sunset: 04:42 PM |
Moonrise:06:50 AM Moonset: 03:16 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Light freezing rain |
-8.1 ° C (17.5°F) |
-2.1 ° C (28.1°F) |
-4.5 ° C (23.9°F) |
% 62 | 73% | 1 | Sunrise:07:43 AM Sunset: 04:42 PM |
Moonrise:07:49 AM Moonset: 04:03 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Light sleet |
-8.7 ° C (16.3°F) |
0.9 ° C (33.6°F) |
-2.9 ° C (26.8°F) |
% 83 | 89% | 1 | Sunrise:07:44 AM Sunset: 04:43 PM |
Moonrise:08:40 AM Moonset: 04:59 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-10.5 ° C (13.1°F) |
-1.9 ° C (28.7°F) |
-6.1 ° C (20.9°F) |
% 76 | 0% | 2 | Sunrise:07:44 AM Sunset: 04:43 PM |
Moonrise:09:23 AM Moonset: 06:03 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-0.9 ° C (30.4°F) |
5.7 ° C (42.3°F) |
1.9 ° C (35.4°F) |
% 71 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:44 PM |
Moonrise:09:58 AM Moonset: 07:10 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Sunny |
-13.7 ° C (7.4°F) |
-9.6 ° C (14.7°F) |
-10 ° C (14°F) |
% 57 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:44 PM |
Moonrise:10:26 AM Moonset: 08:19 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Moderate snow |
-14.2 ° C (6.5°F) |
-8.7 ° C (16.3°F) |
-11.5 ° C (11.3°F) |
% 61 | 62% | 1 | Sunrise:07:45 AM Sunset: 04:45 PM |
Moonrise:10:50 AM Moonset: 09:28 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Moderate snow |
-9.3 ° C (15.3°F) |
-6.5 ° C (20.4°F) |
-7.8 ° C (17.9°F) |
% 94 | 72% | 1 | Sunrise:07:46 AM Sunset: 04:45 PM |
Moonrise:11:12 AM Moonset: 10:37 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Moderate snow |
-20.2 ° C (-4.4°F) |
-17.6 ° C (0.3°F) |
-17.4 ° C (0.7°F) |
% 92 | 61% | 1 | Sunrise:07:46 AM Sunset: 04:46 PM |
Moonrise:11:32 AM Moonset: 11:47 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Light freezing rain |
-19.5 ° C (-3.1°F) |
-16.3 ° C (2.6°F) |
-17.7 ° C (0.1°F) |
% 87 | 83% | 1 | Sunrise:07:46 AM Sunset: 04:47 PM |
Moonrise:11:52 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
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