Current weather conditions and 15 day weather forecast for Interior, South 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.
| 21 August 2026 Friday 25.3 ° C / 77.5°F ![]() Clear |
Feels Like : 21.9 ° C / 71.4°F Humidity : % 26 Pressure : 1014 mb Wind Speed : 11.2 kmph / 6.9 miles from E ![]() Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 August 2026 Thursday | Sunny |
18.7 ° C (65.7°F) |
35.7 ° C (96.3°F) |
26.6 ° C (79.8°F) |
% 45 | 1% | 7.4 | Sunrise:05:58 AM Sunset: 07:44 PM |
Moonrise:03:19 PM Moonset: 11:37 PM Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
18.6 ° C (65.5°F) |
31 ° C (87.9°F) |
25.7 ° C (78.2°F) |
% 33 | 3% | 7.8 | Sunrise:05:59 AM Sunset: 07:42 PM |
Moonrise:04:18 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Overcast |
18.7 ° C (65.7°F) |
28.9 ° C (84°F) |
25.1 ° C (77.1°F) |
% 42 | 9% | 7.8 | Sunrise:06:00 AM Sunset: 07:41 PM |
Moonrise:05:07 PM Moonset: 12:27 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
20.5 ° C (69°F) |
36.2 ° C (97.2°F) |
28.5 ° C (83.3°F) |
% 42 | 57% | 8.4 | Sunrise:06:01 AM Sunset: 07:39 PM |
Moonrise:05:47 PM Moonset: 01:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
20.1 ° C (68.1°F) |
32.5 ° C (90.4°F) |
26 ° C (78.9°F) |
% 44 | 57% | 8.1 | Sunrise:06:02 AM Sunset: 07:37 PM |
Moonrise:06:20 PM Moonset: 02:27 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Sunny |
20.8 ° C (69.5°F) |
28.7 ° C (83.6°F) |
24.8 ° C (76.6°F) |
% 41 | 36% | 7 | Sunrise:06:03 AM Sunset: 07:36 PM |
Moonrise:06:46 PM Moonset: 03:32 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Sunny |
20.4 ° C (68.6°F) |
28.7 ° C (83.7°F) |
25.4 ° C (77.7°F) |
% 32 | 1% | 7 | Sunrise:06:04 AM Sunset: 07:34 PM |
Moonrise:07:08 PM Moonset: 04:37 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Sunny |
21.7 ° C (71.1°F) |
31.7 ° C (89°F) |
26.2 ° C (79.2°F) |
% 45 | 36% | 8 | Sunrise:06:06 AM Sunset: 07:32 PM |
Moonrise:07:27 PM Moonset: 05:41 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday | Sunny |
21.6 ° C (70.8°F) |
34.5 ° C (94.1°F) |
28.2 ° C (82.7°F) |
% 41 | 3% | 8 | Sunrise:06:07 AM Sunset: 07:31 PM |
Moonrise:07:44 PM Moonset: 06:45 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Sunny |
16.4 ° C (61.6°F) |
28.2 ° C (82.8°F) |
22.4 ° C (72.3°F) |
% 49 | 4% | 7 | Sunrise:06:08 AM Sunset: 07:29 PM |
Moonrise:08:02 PM Moonset: 07:48 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Sunny |
16.6 ° C (61.9°F) |
26.8 ° C (80.3°F) |
20.2 ° C (68.3°F) |
% 64 | 70% | 7 | Sunrise:06:09 AM Sunset: 07:27 PM |
Moonrise:08:20 PM Moonset: 08:53 AM Moon Phase ( Waning Gibbous ) |
|
| 31 August 2026 Monday | Sunny |
14.3 ° C (57.7°F) |
21.8 ° C (71.3°F) |
17.8 ° C (64.1°F) |
% 62 | 6% | 6 | Sunrise:06:10 AM Sunset: 07:25 PM |
Moonrise:08:40 PM Moonset: 09:59 AM Moon Phase ( Waning Gibbous ) |
|
| 01 September 2026 Tuesday | Overcast |
11.4 ° C (52.6°F) |
27.2 ° C (81°F) |
20.1 ° C (68.1°F) |
% 55 | 17% | 7 | Sunrise:06:11 AM Sunset: 07:24 PM |
Moonrise:09:04 PM Moonset: 11:07 AM Moon Phase ( Waning Gibbous ) |
|
| 02 September 2026 Wednesday | Overcast |
25.2 ° C (77.4°F) |
32.1 ° C (89.8°F) |
29 ° C (84.3°F) |
% 33 | 7% | 8 | Sunrise:06:12 AM Sunset: 07:22 PM |
Moonrise:09:33 PM Moonset: 12:19 PM Moon Phase ( Last Quarter ) |
|