Current weather conditions and 15 day weather forecast for Marvin, 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.
| 11 August 2026 Tuesday 21.9 ° C / 71.4°F ![]() Clear |
Feels Like : 21.5 ° C / 70.7°F Humidity : % 79 Pressure : 1012 mb Wind Speed : 16.9 kmph / 10.5 miles from ESE ![]() Visibility : 9 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 August 2026 Monday | Sunny |
14 ° C (57.2°F) |
26.4 ° C (79.5°F) |
20.1 ° C (68.2°F) |
% 73 | 7% | 6.4 | Sunrise:06:23 AM Sunset: 08:43 PM |
Moonrise:02:56 AM Moonset: 07:33 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
18.7 ° C (65.7°F) |
30.9 ° C (87.6°F) |
24.2 ° C (75.6°F) |
% 74 | 9% | 6.2 | Sunrise:06:24 AM Sunset: 08:41 PM |
Moonrise:04:19 AM Moonset: 08:11 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
18.2 ° C (64.7°F) |
30.2 ° C (86.3°F) |
23.9 ° C (75.1°F) |
% 68 | 67% | 6.4 | Sunrise:06:25 AM Sunset: 08:39 PM |
Moonrise:05:46 AM Moonset: 08:40 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
16.8 ° C (62.3°F) |
27.6 ° C (81.8°F) |
22 ° C (71.5°F) |
% 58 | 4% | 5.1 | Sunrise:06:26 AM Sunset: 08:38 PM |
Moonrise:07:12 AM Moonset: 09:04 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
14.4 ° C (58°F) |
24.7 ° C (76.4°F) |
19.7 ° C (67.5°F) |
% 58 | 17% | 6.5 | Sunrise:06:27 AM Sunset: 08:36 PM |
Moonrise:08:36 AM Moonset: 09:25 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Overcast |
15.7 ° C (60.3°F) |
23.8 ° C (74.8°F) |
19.8 ° C (67.6°F) |
% 92 | 88% | 5 | Sunrise:06:29 AM Sunset: 08:35 PM |
Moonrise:09:56 AM Moonset: 09:45 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
13.2 ° C (55.8°F) |
25.2 ° C (77.4°F) |
18.7 ° C (65.6°F) |
% 69 | 6% | 7 | Sunrise:06:30 AM Sunset: 08:33 PM |
Moonrise:11:14 AM Moonset: 10:06 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
14.7 ° C (58.5°F) |
28.3 ° C (82.9°F) |
20.5 ° C (69°F) |
% 71 | 57% | 7 | Sunrise:06:31 AM Sunset: 08:32 PM |
Moonrise:12:30 PM Moonset: 10:29 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
18.7 ° C (65.7°F) |
31.5 ° C (88.6°F) |
24.5 ° C (76.2°F) |
% 64 | 17% | 8 | Sunrise:06:32 AM Sunset: 08:30 PM |
Moonrise:01:46 PM Moonset: 10:56 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Partly Cloudy |
18.8 ° C (65.8°F) |
24.2 ° C (75.5°F) |
21.5 ° C (70.6°F) |
% 87 | 78% | 6 | Sunrise:06:33 AM Sunset: 08:28 PM |
Moonrise:02:58 PM Moonset: 11:28 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Overcast |
17.8 ° C (64.1°F) |
28.3 ° C (83°F) |
21.9 ° C (71.5°F) |
% 85 | 79% | 7 | Sunrise:06:35 AM Sunset: 08:27 PM |
Moonrise:04:05 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
15.5 ° C (60°F) |
28.6 ° C (83.4°F) |
21.8 ° C (71.2°F) |
% 71 | 36% | 7 | Sunrise:06:36 AM Sunset: 08:25 PM |
Moonrise:05:05 PM Moonset: 12:09 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Patchy rain nearby |
18 ° C (64.4°F) |
30 ° C (86°F) |
23.6 ° C (74.4°F) |
% 73 | 73% | 7 | Sunrise:06:37 AM Sunset: 08:23 PM |
Moonrise:05:54 PM Moonset: 12:58 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Light rain shower |
19.9 ° C (67.8°F) |
22.5 ° C (72.6°F) |
20.8 ° C (69.4°F) |
% 97 | 92% | 5 | Sunrise:06:38 AM Sunset: 08:21 PM |
Moonrise:06:33 PM Moonset: 01:56 AM Moon Phase ( Waxing Gibbous ) |
|