Current weather conditions and 15 day weather forecast for Mount Vernon, 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 27.8 ° C / 82°F ![]() Sunny |
Feels Like : 29.7 ° C / 85.5°F Humidity : % 65 Pressure : 1006 mb Wind Speed : 7.9 kmph / 4.9 miles from ENE ![]() 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 |
17.9 ° C (64.2°F) |
31.1 ° C (88°F) |
24.7 ° C (76.4°F) |
% 76 | 17% | 5.8 | Sunrise:06:32 AM Sunset: 08:44 PM |
Moonrise:03:09 AM Moonset: 07:32 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
20.1 ° C (68.2°F) |
39.5 ° C (103.1°F) |
29.2 ° C (84.5°F) |
% 57 | 57% | 6.5 | Sunrise:06:33 AM Sunset: 08:43 PM |
Moonrise:04:31 AM Moonset: 08:12 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
19.2 ° C (66.5°F) |
35 ° C (95°F) |
26.6 ° C (79.9°F) |
% 56 | 17% | 6.2 | Sunrise:06:34 AM Sunset: 08:41 PM |
Moonrise:05:56 AM Moonset: 08:43 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
18.6 ° C (65.5°F) |
26 ° C (78.8°F) |
22.2 ° C (72°F) |
% 73 | 60% | 2.4 | Sunrise:06:35 AM Sunset: 08:40 PM |
Moonrise:07:21 AM Moonset: 09:08 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Partly Cloudy |
16.3 ° C (61.4°F) |
28.4 ° C (83.2°F) |
20.1 ° C (68.2°F) |
% 81 | 72% | 3.7 | Sunrise:06:36 AM Sunset: 08:38 PM |
Moonrise:08:42 AM Moonset: 09:31 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Mist |
20 ° C (67.9°F) |
28.8 ° C (83.8°F) |
22.8 ° C (73.1°F) |
% 80 | 74% | 6 | Sunrise:06:37 AM Sunset: 08:37 PM |
Moonrise:10:01 AM Moonset: 09:52 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
14.6 ° C (58.2°F) |
31.1 ° C (87.9°F) |
22.9 ° C (73.2°F) |
% 50 | 2% | 8 | Sunrise:06:38 AM Sunset: 08:35 PM |
Moonrise:11:17 AM Moonset: 10:14 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
18 ° C (64.4°F) |
35.4 ° C (95.8°F) |
26.6 ° C (79.9°F) |
% 51 | 3% | 9 | Sunrise:06:39 AM Sunset: 08:34 PM |
Moonrise:12:32 PM Moonset: 10:39 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
17.6 ° C (63.6°F) |
37.6 ° C (99.7°F) |
27.3 ° C (81.1°F) |
% 59 | 36% | 9 | Sunrise:06:41 AM Sunset: 08:32 PM |
Moonrise:01:46 PM Moonset: 11:07 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
25.8 ° C (78.4°F) |
43.5 ° C (110.4°F) |
33 ° C (91.4°F) |
% 40 | 17% | 10 | Sunrise:06:42 AM Sunset: 08:31 PM |
Moonrise:02:57 PM Moonset: 11:41 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Sunny |
17.1 ° C (62.8°F) |
24.8 ° C (76.6°F) |
20.7 ° C (69.2°F) |
% 78 | 77% | 6 | Sunrise:06:43 AM Sunset: 08:29 PM |
Moonrise:04:03 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Patchy rain nearby |
19 ° C (66.2°F) |
26.2 ° C (79.2°F) |
22 ° C (71.6°F) |
% 85 | 87% | 6 | Sunrise:06:44 AM Sunset: 08:27 PM |
Moonrise:05:02 PM Moonset: 12:22 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Overcast |
16.6 ° C (61.9°F) |
32.6 ° C (90.6°F) |
22.5 ° C (72.6°F) |
% 70 | 11% | 7 | Sunrise:06:45 AM Sunset: 08:26 PM |
Moonrise:05:52 PM Moonset: 01:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Sunny |
15.1 ° C (59.3°F) |
28.9 ° C (84°F) |
22.1 ° C (71.8°F) |
% 74 | 36% | 7 | Sunrise:06:46 AM Sunset: 08:24 PM |
Moonrise:06:32 PM Moonset: 02:09 AM Moon Phase ( Waxing Gibbous ) |
|