Current weather conditions and 15 day weather forecast for Surprise Valley, 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 29.1 ° C / 84.4°F ![]() Sunny |
Feels Like : 26.4 ° C / 79.5°F Humidity : % 27 Pressure : 1012 mb Wind Speed : 12.2 kmph / 7.6 miles from NE ![]() 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 |
18.9 ° C (66°F) |
34 ° C (93.2°F) |
25.8 ° C (78.5°F) |
% 48 | 1% | 7.4 | Sunrise:06:55 AM Sunset: 08:39 PM |
Moonrise:04:13 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
19.4 ° C (66.9°F) |
34.5 ° C (94°F) |
26.3 ° C (79.3°F) |
% 43 | 3% | 8 | Sunrise:06:56 AM Sunset: 08:38 PM |
Moonrise:05:12 PM Moonset: 12:35 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Overcast |
19 ° C (66.3°F) |
32.5 ° C (90.5°F) |
25.5 ° C (77.9°F) |
% 42 | 17% | 7.8 | Sunrise:06:57 AM Sunset: 08:36 PM |
Moonrise:06:01 PM Moonset: 01:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
20.6 ° C (69°F) |
35.5 ° C (95.9°F) |
27.3 ° C (81.2°F) |
% 54 | 59% | 8.3 | Sunrise:06:58 AM Sunset: 08:35 PM |
Moonrise:06:42 PM Moonset: 02:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Sunny |
19.6 ° C (67.2°F) |
34.6 ° C (94.3°F) |
27.4 ° C (81.3°F) |
% 49 | 57% | 8.3 | Sunrise:06:59 AM Sunset: 08:33 PM |
Moonrise:07:14 PM Moonset: 03:25 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Sunny |
20.7 ° C (69.2°F) |
27.2 ° C (80.9°F) |
23.4 ° C (74.1°F) |
% 56 | 57% | 7 | Sunrise:07:00 AM Sunset: 08:31 PM |
Moonrise:07:41 PM Moonset: 04:29 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Sunny |
18.1 ° C (64.6°F) |
29.4 ° C (84.9°F) |
23.7 ° C (74.7°F) |
% 38 | 1% | 7 | Sunrise:07:01 AM Sunset: 08:30 PM |
Moonrise:08:03 PM Moonset: 05:34 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Patchy rain nearby |
19.3 ° C (66.7°F) |
35.1 ° C (95.2°F) |
26.2 ° C (79.1°F) |
% 47 | 57% | 9 | Sunrise:07:02 AM Sunset: 08:28 PM |
Moonrise:08:22 PM Moonset: 06:38 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday | Sunny |
19.1 ° C (66.3°F) |
36.1 ° C (97°F) |
27 ° C (80.5°F) |
% 56 | 17% | 9 | Sunrise:07:03 AM Sunset: 08:26 PM |
Moonrise:08:40 PM Moonset: 07:41 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Sunny |
19.5 ° C (67.1°F) |
30.9 ° C (87.7°F) |
24.9 ° C (76.8°F) |
% 64 | 9% | 8 | Sunrise:07:05 AM Sunset: 08:25 PM |
Moonrise:08:58 PM Moonset: 08:44 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Patchy rain nearby |
18.3 ° C (64.9°F) |
27.2 ° C (80.9°F) |
22.5 ° C (72.4°F) |
% 67 | 65% | 7 | Sunrise:07:06 AM Sunset: 08:23 PM |
Moonrise:09:16 PM Moonset: 09:48 AM Moon Phase ( Waning Gibbous ) |
|
| 31 August 2026 Monday | Sunny |
15 ° C (59.1°F) |
24.9 ° C (76.7°F) |
19.6 ° C (67.3°F) |
% 69 | 8% | 6 | Sunrise:07:07 AM Sunset: 08:21 PM |
Moonrise:09:37 PM Moonset: 10:54 AM Moon Phase ( Waning Gibbous ) |
|
| 01 September 2026 Tuesday | Patchy rain nearby |
13.1 ° C (55.5°F) |
27.6 ° C (81.6°F) |
20.3 ° C (68.5°F) |
% 59 | 36% | 7 | Sunrise:07:08 AM Sunset: 08:19 PM |
Moonrise:10:01 PM Moonset: 12:02 PM Moon Phase ( Waning Gibbous ) |
|
| 02 September 2026 Wednesday | Overcast |
20.5 ° C (68.9°F) |
35.3 ° C (95.5°F) |
27.6 ° C (81.6°F) |
% 43 | 7% | 8 | Sunrise:07:09 AM Sunset: 08:18 PM |
Moonrise:10:31 PM Moonset: 01:13 PM Moon Phase ( Last Quarter ) |
|