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.
| 25 September 2026 Friday 14.9 ° C / 58.9°F ![]() Patchy rain nearby |
Feels Like : 12 ° C / 53.6°F Humidity : % 89 Pressure : 1020 mb Wind Speed : 20.2 kmph / 12.5 miles from SSE ![]() Visibility : 10 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 24 September 2026 Thursday | Overcast |
13.2 ° C (55.8°F) |
19 ° C (66.2°F) |
15.6 ° C (60°F) |
% 88 | 90% | 2.2 | Sunrise:07:22 AM Sunset: 07:27 PM |
Moonrise:06:36 PM Moonset: 05:19 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Patchy rain nearby |
13 ° C (55.3°F) |
15.1 ° C (59.1°F) |
13.9 ° C (57.1°F) |
% 92 | 83% | 1.2 | Sunrise:07:23 AM Sunset: 07:25 PM |
Moonrise:06:53 PM Moonset: 06:23 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Patchy rain nearby |
13.2 ° C (55.7°F) |
19.2 ° C (66.6°F) |
16 ° C (60.8°F) |
% 93 | 78% | 3.1 | Sunrise:07:24 AM Sunset: 07:23 PM |
Moonrise:07:11 PM Moonset: 07:27 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Overcast |
15.4 ° C (59.8°F) |
23.6 ° C (74.4°F) |
19 ° C (66.1°F) |
% 87 | 41% | 4.7 | Sunrise:07:26 AM Sunset: 07:21 PM |
Moonrise:07:31 PM Moonset: 08:34 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Overcast |
15.3 ° C (59.6°F) |
23.7 ° C (74.7°F) |
19.4 ° C (66.8°F) |
% 79 | 85% | 4.7 | Sunrise:07:27 AM Sunset: 07:20 PM |
Moonrise:07:54 PM Moonset: 09:42 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Overcast |
15 ° C (59°F) |
17.4 ° C (63.4°F) |
16.5 ° C (61.7°F) |
% 88 | 80% | 4 | Sunrise:07:28 AM Sunset: 07:18 PM |
Moonrise:08:21 PM Moonset: 10:53 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Overcast |
15.6 ° C (60.1°F) |
19.7 ° C (67.5°F) |
17.5 ° C (63.6°F) |
% 83 | 43% | 4 | Sunrise:07:29 AM Sunset: 07:16 PM |
Moonrise:08:57 PM Moonset: 12:06 PM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Light rain shower |
9.7 ° C (49.4°F) |
16.8 ° C (62.2°F) |
12.5 ° C (54.4°F) |
% 80 | 85% | 3 | Sunrise:07:30 AM Sunset: 07:14 PM |
Moonrise:09:43 PM Moonset: 01:17 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Sunny |
8.3 ° C (46.9°F) |
16 ° C (60.9°F) |
11.6 ° C (53°F) |
% 61 | 6% | 4 | Sunrise:07:31 AM Sunset: 07:12 PM |
Moonrise:10:41 PM Moonset: 02:23 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Patchy rain nearby |
8.6 ° C (47.4°F) |
18.4 ° C (65°F) |
12.2 ° C (53.9°F) |
% 85 | 81% | 4 | Sunrise:07:33 AM Sunset: 07:11 PM |
Moonrise:11:50 PM Moonset: 03:18 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Patchy rain nearby |
3.6 ° C (38.5°F) |
9.3 ° C (48.7°F) |
6.1 ° C (43°F) |
% 72 | 30% | 2 | Sunrise:07:34 AM Sunset: 07:09 PM |
Moonrise:Does not rise today Moonset: 04:03 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Sunny |
3.9 ° C (39°F) |
11.7 ° C (53.1°F) |
7.5 ° C (45.5°F) |
% 63 | 4% | 4 | Sunrise:07:35 AM Sunset: 07:07 PM |
Moonrise:01:07 AM Moonset: 04:39 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Sunny |
7.3 ° C (45.2°F) |
14.4 ° C (57.9°F) |
10.6 ° C (51°F) |
% 58 | 7% | 4 | Sunrise:07:36 AM Sunset: 07:05 PM |
Moonrise:02:28 AM Moonset: 05:07 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday | Sunny |
11.1 ° C (52°F) |
16.7 ° C (62°F) |
13.7 ° C (56.7°F) |
% 59 | 4% | 5 | Sunrise:07:37 AM Sunset: 07:03 PM |
Moonrise:03:48 AM Moonset: 05:32 PM Moon Phase ( Waning Crescent ) |
|