Sioux Weather Forecast 15 Days, Weather in Sioux Today
Current weather conditions and 15 day weather forecast for Sioux, North Dakota, 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
| 12 August 2026 Wednesday 17.5 ° C / 63.5°F  Sunny |
Feels Like : 15 ° C / 59°F Humidity : % 73 Pressure : 1014 mb Wind Speed : 17.3 kmph / 10.7 miles from ENE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 1 |
15 day weather forecast for Sioux, ND, USA
Weather Forecast for next 15 Days for 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 Sioux, North Dakota 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 August 2026 Wednesday | Sunny |
14.3 ° C (57.7°F) |
29.4 ° C (84.9°F) |
22.1 ° C (71.8°F) |
% 53 | 17% | 4.2 | Sunrise:06:47 AM Sunset: 09:14 PM |
Moonrise:06:07 AM Moonset: 09:15 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday |  Patchy rain nearby |
16 ° C (60.9°F) |
20.5 ° C (68.9°F) |
17.7 ° C (63.9°F) |
% 63 | 70% | 3.2 | Sunrise:06:48 AM Sunset: 09:12 PM |
Moonrise:07:37 AM Moonset: 09:36 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Patchy rain nearby |
13.4 ° C (56.2°F) |
17.2 ° C (62.9°F) |
15.6 ° C (60°F) |
% 81 | 82% | 0.7 | Sunrise:06:49 AM Sunset: 09:11 PM |
Moonrise:09:03 AM Moonset: 09:54 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday |  Partly Cloudy |
13.5 ° C (56.2°F) |
24.5 ° C (76.1°F) |
18.6 ° C (65.5°F) |
% 62 | 6% | 6.1 | Sunrise:06:51 AM Sunset: 09:09 PM |
Moonrise:10:26 AM Moonset: 10:12 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
14.3 ° C (57.8°F) |
30.1 ° C (86.2°F) |
22.1 ° C (71.8°F) |
% 53 | 36% | 8 | Sunrise:06:52 AM Sunset: 09:07 PM |
Moonrise:11:47 AM Moonset: 10:30 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
19.4 ° C (66.9°F) |
30.5 ° C (87°F) |
24.2 ° C (75.6°F) |
% 53 | 57% | 8 | Sunrise:06:53 AM Sunset: 09:05 PM |
Moonrise:01:07 PM Moonset: 10:50 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
17.2 ° C (62.9°F) |
31.6 ° C (89°F) |
24.6 ° C (76.2°F) |
% 48 | 2% | 8 | Sunrise:06:55 AM Sunset: 09:03 PM |
Moonrise:02:25 PM Moonset: 11:14 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
20.4 ° C (68.7°F) |
33.2 ° C (91.8°F) |
27.1 ° C (80.9°F) |
% 41 | 17% | 8 | Sunrise:06:56 AM Sunset: 09:02 PM |
Moonrise:03:40 PM Moonset: 11:45 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Patchy rain nearby |
20.9 ° C (69.6°F) |
28.2 ° C (82.8°F) |
24.2 ° C (75.5°F) |
% 53 | 60% | 7 | Sunrise:06:57 AM Sunset: 09:00 PM |
Moonrise:04:49 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
18.8 ° C (65.9°F) |
32.8 ° C (91.1°F) |
25.3 ° C (77.6°F) |
% 40 | 1% | 8 | Sunrise:06:59 AM Sunset: 08:58 PM |
Moonrise:05:49 PM Moonset: 12:24 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
16.4 ° C (61.5°F) |
29.1 ° C (84.5°F) |
22.8 ° C (73°F) |
% 45 | 2% | 7 | Sunrise:07:00 AM Sunset: 08:56 PM |
Moonrise:06:37 PM Moonset: 01:13 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Patchy rain nearby |
14.3 ° C (57.8°F) |
26.1 ° C (78.9°F) |
20 ° C (68°F) |
% 49 | 36% | 7 | Sunrise:07:01 AM Sunset: 08:54 PM |
Moonrise:07:15 PM Moonset: 02:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
13.9 ° C (57°F) |
33.1 ° C (91.5°F) |
22.5 ° C (72.6°F) |
% 49 | 17% | 8 | Sunrise:07:03 AM Sunset: 08:52 PM |
Moonrise:07:44 PM Moonset: 03:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Sunny |
10.5 ° C (50.9°F) |
23.7 ° C (74.6°F) |
16.5 ° C (61.8°F) |
% 53 | 17% | 5 | Sunrise:07:04 AM Sunset: 08:50 PM |
Moonrise:08:06 PM Moonset: 04:24 AM Moon Phase ( Full Moon ) |
|
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