River Sioux Weather Forecast 15 Days, Weather in River Sioux Today
Current weather conditions and 15 day weather forecast for River Sioux, 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 River Sioux
| 05 May 2026 Tuesday 14.4 ° C / 57.9°F  Sunny |
Feels Like : 12.9 ° C / 55.2°F Humidity : % 26 Pressure : 1013 mb Wind Speed : 20.9 kmph / 13 miles from NW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for River Sioux, IA, USA
Weather Forecast for next 15 Days for River Sioux 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 River Sioux, 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 May 2026 Tuesday | Sunny |
5.9 ° C (42.6°F) |
17 ° C (62.6°F) |
12.2 ° C (54°F) |
% 35 | 0% | 5.3 | Sunrise:06:16 AM Sunset: 08:27 PM |
Moonrise:No moonrise Moonset: 08:23 AM Moon Phase ( Waning Gibbous ) |
|
| 06 May 2026 Wednesday |  Partly Cloudy |
3.7 ° C (38.7°F) |
15.4 ° C (59.7°F) |
9.9 ° C (49.8°F) |
% 38 | 0% | 6 | Sunrise:06:14 AM Sunset: 08:28 PM |
Moonrise:12:45 AM Moonset: 09:19 AM Moon Phase ( Waning Gibbous ) |
|
| 07 May 2026 Thursday | Sunny |
5.3 ° C (41.6°F) |
23 ° C (73.4°F) |
14.2 ° C (57.5°F) |
% 40 | 0% | 6.6 | Sunrise:06:13 AM Sunset: 08:29 PM |
Moonrise:01:27 AM Moonset: 10:20 AM Moon Phase ( Waning Gibbous ) |
|
| 08 May 2026 Friday | Partly Cloudy |
11.7 ° C (53°F) |
23 ° C (73.4°F) |
17 ° C (62.7°F) |
% 42 | 0% | 0.1 | Sunrise:06:12 AM Sunset: 08:31 PM |
Moonrise:02:01 AM Moonset: 11:25 AM Moon Phase ( Waning Gibbous ) |
|
| 09 May 2026 Saturday |  Patchy rain nearby |
11.1 ° C (52°F) |
19.1 ° C (66.4°F) |
14.7 ° C (58.4°F) |
% 63 | 88% | 3 | Sunrise:06:11 AM Sunset: 08:32 PM |
Moonrise:02:30 AM Moonset: 12:31 PM Moon Phase ( Last Quarter ) |
|
| 10 May 2026 Sunday | Sunny |
7.3 ° C (45.1°F) |
19 ° C (66.1°F) |
11.6 ° C (52.9°F) |
% 62 | 0% | 4 | Sunrise:06:10 AM Sunset: 08:33 PM |
Moonrise:02:55 AM Moonset: 01:38 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
8.6 ° C (47.4°F) |
24.2 ° C (75.5°F) |
16.3 ° C (61.4°F) |
% 44 | 0% | 5 | Sunrise:06:09 AM Sunset: 08:34 PM |
Moonrise:03:17 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
14.3 ° C (57.8°F) |
28.9 ° C (83.9°F) |
21 ° C (69.9°F) |
% 45 | 0% | 6 | Sunrise:06:08 AM Sunset: 08:35 PM |
Moonrise:03:39 AM Moonset: 03:56 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Partly Cloudy |
12.4 ° C (54.3°F) |
17.6 ° C (63.6°F) |
15.4 ° C (59.7°F) |
% 60 | 0% | 5 | Sunrise:06:07 AM Sunset: 08:36 PM |
Moonrise:04:00 AM Moonset: 05:08 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
9.9 ° C (49.8°F) |
25.8 ° C (78.5°F) |
17.6 ° C (63.6°F) |
% 52 | 0% | 5 | Sunrise:06:06 AM Sunset: 08:37 PM |
Moonrise:04:24 AM Moonset: 06:25 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Partly Cloudy |
16.2 ° C (61.1°F) |
30.1 ° C (86.2°F) |
22.6 ° C (72.7°F) |
% 50 | 0% | 6 | Sunrise:06:05 AM Sunset: 08:38 PM |
Moonrise:04:52 AM Moonset: 07:46 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
10.6 ° C (51°F) |
30.2 ° C (86.3°F) |
21.7 ° C (71°F) |
% 72 | 81% | 5 | Sunrise:06:04 AM Sunset: 08:39 PM |
Moonrise:05:27 AM Moonset: 09:09 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
6.7 ° C (44°F) |
19.3 ° C (66.7°F) |
14 ° C (57.2°F) |
% 51 | 84% | 3 | Sunrise:06:03 AM Sunset: 08:40 PM |
Moonrise:06:11 AM Moonset: 10:28 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
9.3 ° C (48.7°F) |
25.5 ° C (78°F) |
17.5 ° C (63.4°F) |
% 37 | 0% | 5 | Sunrise:06:02 AM Sunset: 08:41 PM |
Moonrise:07:09 AM Moonset: 11:37 PM Moon Phase ( Waxing Crescent ) |
|
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