Sioux City Weather Forecast 15 Days, Weather in Sioux City Today
Current weather conditions and 15 day weather forecast for Sioux City, 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 Sioux City
| 05 December 2025 Friday -6.7 ° C / 19.9°F  Overcast |
Feels Like : -11.1 ° C / 12°F Humidity : % 88 Pressure : 1008 mb Wind Speed : 9.4 kmph / 5.8 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Sioux City, IA, USA
Weather Forecast for next 15 Days for Sioux City 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 Sioux City, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Light freezing rain |
-9.5 ° C (14.9°F) |
4.7 ° C (40.5°F) |
-3.7 ° C (25.3°F) |
% 82 | 84% | 0.4 | Sunrise:07:40 AM Sunset: 04:53 PM |
Moonrise:05:21 PM Moonset: 08:51 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Mist |
-5.5 ° C (22.1°F) |
-1.4 ° C (29.5°F) |
-3.4 ° C (25.8°F) |
% 94 | 61% | 0.2 | Sunrise:07:41 AM Sunset: 04:53 PM |
Moonrise:06:34 PM Moonset: 09:56 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Moderate snow |
-20.4 ° C (-4.7°F) |
-6.9 ° C (19.7°F) |
-9.3 ° C (15.2°F) |
% 85 | 82% | 0.4 | Sunrise:07:42 AM Sunset: 04:53 PM |
Moonrise:07:53 PM Moonset: 10:45 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Overcast |
-18 ° C (-0.3°F) |
-1.1 ° C (30°F) |
-10.5 ° C (13.2°F) |
% 94 | 0% | 0.3 | Sunrise:07:43 AM Sunset: 04:53 PM |
Moonrise:09:11 PM Moonset: 11:23 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Fog |
-8.1 ° C (17.4°F) |
0.8 ° C (33.4°F) |
-2.3 ° C (27.9°F) |
% 93 | 57% | 0 | Sunrise:07:44 AM Sunset: 04:53 PM |
Moonrise:10:24 PM Moonset: 11:51 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Partly Cloudy |
-7.7 ° C (18.2°F) |
2.8 ° C (37°F) |
-1.2 ° C (29.8°F) |
% 87 | 0% | 2 | Sunrise:07:44 AM Sunset: 04:53 PM |
Moonrise:11:33 PM Moonset: 12:14 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Partly Cloudy |
-11.1 ° C (12°F) |
-6.5 ° C (20.2°F) |
-9.4 ° C (15.2°F) |
% 87 | 0% | 2 | Sunrise:07:45 AM Sunset: 04:53 PM |
Moonrise:No moonrise Moonset: 12:34 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Moderate snow |
-11.7 ° C (10.9°F) |
-6 ° C (21.3°F) |
-8 ° C (17.6°F) |
% 93 | 86% | 1 | Sunrise:07:46 AM Sunset: 04:53 PM |
Moonrise:12:38 AM Moonset: 12:53 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Heavy snow |
-8.2 ° C (17.2°F) |
-3.9 ° C (25°F) |
-6.4 ° C (20.5°F) |
% 93 | 80% | 1 | Sunrise:07:47 AM Sunset: 04:53 PM |
Moonrise:01:42 AM Moonset: 01:12 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Overcast |
-3.6 ° C (25.6°F) |
0.8 ° C (33.5°F) |
-0.5 ° C (31°F) |
% 94 | 0% | 1 | Sunrise:07:48 AM Sunset: 04:53 PM |
Moonrise:02:44 AM Moonset: 01:31 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Light freezing rain |
-6.5 ° C (20.3°F) |
1.9 ° C (35.5°F) |
-1 ° C (30.2°F) |
% 93 | 89% | 1 | Sunrise:07:48 AM Sunset: 04:54 PM |
Moonrise:03:48 AM Moonset: 01:53 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Cloudy |
-8.2 ° C (17.3°F) |
-4 ° C (24.8°F) |
-5.9 ° C (21.4°F) |
% 83 | 0% | 1 | Sunrise:07:49 AM Sunset: 04:54 PM |
Moonrise:04:51 AM Moonset: 02:19 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light freezing rain |
-11.3 ° C (11.6°F) |
-2.9 ° C (26.8°F) |
-5.1 ° C (22.8°F) |
% 89 | 86% | 1 | Sunrise:07:50 AM Sunset: 04:54 PM |
Moonrise:05:55 AM Moonset: 02:50 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Overcast |
-13.9 ° C (6.9°F) |
-10.6 ° C (13°F) |
-12.6 ° C (9.4°F) |
% 86 | 0% | 1 | Sunrise:07:50 AM Sunset: 04:55 PM |
Moonrise:06:58 AM Moonset: 03:30 PM Moon Phase ( Waning Crescent ) |
|
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