Duncan Weather Forecast 15 Days, Weather in Duncan Today
Current weather conditions and 15 day weather forecast for Duncan, Illinois, 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
| 04 February 2026 Wednesday -4.4 ° C / 24.1°F  Sunny |
Feels Like : -7.6 ° C / 18.3°F Humidity : % 57 Pressure : 1031 mb Wind Speed : 7.2 kmph / 4.5 miles from NNE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Duncan, IL, 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, Illinois 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 04 February 2026 Wednesday | Sunny |
-13.9 ° C (7°F) |
-0.2 ° C (31.6°F) |
-7.4 ° C (18.6°F) |
% 68 | 0% | 0.4 | Sunrise:07:11 AM Sunset: 05:24 PM |
Moonrise:08:47 PM Moonset: 08:35 AM Moon Phase ( Waning Gibbous ) |
|
| 05 February 2026 Thursday |  Overcast |
-5.8 ° C (21.6°F) |
1.3 ° C (34.3°F) |
-2.5 ° C (27.6°F) |
% 76 | 0% | 0.4 | Sunrise:07:10 AM Sunset: 05:25 PM |
Moonrise:09:52 PM Moonset: 08:55 AM Moon Phase ( Waning Gibbous ) |
|
| 06 February 2026 Friday | Overcast |
-1.1 ° C (30°F) |
3 ° C (37.4°F) |
0.4 ° C (32.7°F) |
% 87 | 0% | 0.4 | Sunrise:07:09 AM Sunset: 05:26 PM |
Moonrise:10:56 PM Moonset: 09:16 AM Moon Phase ( Waning Gibbous ) |
|
| 07 February 2026 Saturday | Sunny |
-5.2 ° C (22.6°F) |
1.4 ° C (34.5°F) |
-2.6 ° C (27.4°F) |
% 51 | 0% | 0.5 | Sunrise:07:08 AM Sunset: 05:28 PM |
Moonrise:No moonrise Moonset: 09:38 AM Moon Phase ( Waning Gibbous ) |
|
| 08 February 2026 Sunday |  Partly Cloudy |
-3.2 ° C (26.3°F) |
7.7 ° C (45.9°F) |
1.4 ° C (34.5°F) |
% 68 | 0% | 0 | Sunrise:07:06 AM Sunset: 05:29 PM |
Moonrise:12:01 AM Moonset: 10:02 AM Moon Phase ( Waning Gibbous ) |
|
| 09 February 2026 Monday | Sunny |
-0.2 ° C (31.7°F) |
14.4 ° C (57.9°F) |
5.8 ° C (42.4°F) |
% 71 | 0% | 3 | Sunrise:07:05 AM Sunset: 05:30 PM |
Moonrise:01:05 AM Moonset: 10:30 AM Moon Phase ( Last Quarter ) |
|
| 10 February 2026 Tuesday | Partly Cloudy |
1 ° C (33.7°F) |
7.6 ° C (45.7°F) |
5.5 ° C (41.9°F) |
% 81 | 0% | 3 | Sunrise:07:04 AM Sunset: 05:31 PM |
Moonrise:02:08 AM Moonset: 11:04 AM Moon Phase ( Waning Crescent ) |
|
| 11 February 2026 Wednesday |  Light freezing rain |
-4 ° C (24.7°F) |
1.9 ° C (35.3°F) |
-1 ° C (30.3°F) |
% 64 | 78% | 1 | Sunrise:07:03 AM Sunset: 05:33 PM |
Moonrise:03:09 AM Moonset: 11:46 AM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday | Light freezing rain |
-4.4 ° C (24°F) |
1.4 ° C (34.5°F) |
-2.5 ° C (27.6°F) |
% 69 | 77% | 1 | Sunrise:07:01 AM Sunset: 05:34 PM |
Moonrise:04:05 AM Moonset: 12:35 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Cloudy |
-4.1 ° C (24.6°F) |
2.7 ° C (36.8°F) |
-1.6 ° C (29.1°F) |
% 60 | 0% | 1 | Sunrise:07:00 AM Sunset: 05:35 PM |
Moonrise:04:55 AM Moonset: 01:34 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday | Overcast |
-4 ° C (24.8°F) |
0.2 ° C (32.3°F) |
-2 ° C (28.3°F) |
% 62 | 0% | 1 | Sunrise:06:59 AM Sunset: 05:36 PM |
Moonrise:05:37 AM Moonset: 02:38 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday | Sunny |
-5.3 ° C (22.5°F) |
4.4 ° C (40°F) |
-0.9 ° C (30.3°F) |
% 56 | 0% | 2 | Sunrise:06:57 AM Sunset: 05:38 PM |
Moonrise:06:11 AM Moonset: 03:46 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday |  Patchy rain nearby |
-2.2 ° C (28.1°F) |
4.7 ° C (40.5°F) |
1.2 ° C (34.1°F) |
% 72 | 71% | 1 | Sunrise:06:56 AM Sunset: 05:39 PM |
Moonrise:06:40 AM Moonset: 04:55 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday | Sunny |
2.3 ° C (36.1°F) |
12.8 ° C (55.1°F) |
6.3 ° C (43.4°F) |
% 69 | 0% | 3 | Sunrise:06:55 AM Sunset: 05:40 PM |
Moonrise:07:06 AM Moonset: 06:05 PM Moon Phase ( New Moon ) |
|
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