Alton Weather Forecast 15 Days, Weather in Alton Today
Current weather conditions and 15 day weather forecast for Alton, 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.
Current weather conditions at Alton
| 05 December 2025 Friday -0.9 ° C / 30.4°F  Light snow |
Feels Like : -3.1 ° C / 26.4°F Humidity : % 93 Pressure : 1005 mb Wind Speed : 6.1 kmph / 3.8 miles from WSW  Visibility : 14 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Alton, SD, USA
Weather Forecast for next 15 Days for Alton including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Alton, South Dakota state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Light freezing rain |
-14.3 ° C (6.2°F) |
0.5 ° C (32.9°F) |
-4.2 ° C (24.4°F) |
% 88 | 71% | 0.3 | Sunrise:07:48 AM Sunset: 04:48 PM |
Moonrise:05:14 PM Moonset: 09:02 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Overcast |
-10.6 ° C (12.9°F) |
-6.2 ° C (20.8°F) |
-7.8 ° C (18°F) |
% 85 | 0% | 0.2 | Sunrise:07:49 AM Sunset: 04:48 PM |
Moonrise:06:27 PM Moonset: 10:06 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Partly Cloudy |
-19 ° C (-2.2°F) |
-10.6 ° C (13°F) |
-13.2 ° C (8.3°F) |
% 79 | 0% | 0.3 | Sunrise:07:50 AM Sunset: 04:48 PM |
Moonrise:07:48 PM Moonset: 10:54 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Cloudy |
-16.4 ° C (2.4°F) |
-6.9 ° C (19.5°F) |
-12 ° C (10.4°F) |
% 93 | 0% | 0.3 | Sunrise:07:51 AM Sunset: 04:48 PM |
Moonrise:09:07 PM Moonset: 11:30 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Freezing fog |
-9.8 ° C (14.4°F) |
0.5 ° C (33°F) |
-2.8 ° C (26.9°F) |
% 95 | 65% | 0 | Sunrise:07:52 AM Sunset: 04:48 PM |
Moonrise:10:22 PM Moonset: 11:57 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Cloudy |
-12.8 ° C (8.9°F) |
-5.5 ° C (22.1°F) |
-6.6 ° C (20.2°F) |
% 93 | 0% | 1 | Sunrise:07:53 AM Sunset: 04:48 PM |
Moonrise:11:33 PM Moonset: 12:19 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Partly Cloudy |
-16.2 ° C (2.8°F) |
-8.8 ° C (16.2°F) |
-13.5 ° C (7.7°F) |
% 93 | 0% | 2 | Sunrise:07:53 AM Sunset: 04:48 PM |
Moonrise:No moonrise Moonset: 12:37 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Light freezing rain |
-15.1 ° C (4.8°F) |
-11.1 ° C (12°F) |
-12.5 ° C (9.5°F) |
% 93 | 80% | 1 | Sunrise:07:54 AM Sunset: 04:48 PM |
Moonrise:12:40 AM Moonset: 12:54 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Heavy snow |
-11.9 ° C (10.5°F) |
-8.7 ° C (16.3°F) |
-10.1 ° C (13.8°F) |
% 92 | 76% | 1 | Sunrise:07:55 AM Sunset: 04:48 PM |
Moonrise:01:45 AM Moonset: 01:12 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Light freezing rain |
-6.5 ° C (20.3°F) |
-2.3 ° C (27.9°F) |
-3.5 ° C (25.7°F) |
% 95 | 79% | 1 | Sunrise:07:56 AM Sunset: 04:48 PM |
Moonrise:02:49 AM Moonset: 01:30 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Fog |
-13.5 ° C (7.7°F) |
0 ° C (32°F) |
-4.9 ° C (23.2°F) |
% 95 | 87% | 1 | Sunrise:07:56 AM Sunset: 04:49 PM |
Moonrise:03:54 AM Moonset: 01:50 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Cloudy |
-13.7 ° C (7.3°F) |
-9.2 ° C (15.4°F) |
-11.8 ° C (10.7°F) |
% 88 | 0% | 1 | Sunrise:07:57 AM Sunset: 04:49 PM |
Moonrise:04:59 AM Moonset: 02:14 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Moderate snow |
-15.5 ° C (4.2°F) |
-8.4 ° C (17°F) |
-10.4 ° C (13.3°F) |
% 92 | 61% | 1 | Sunrise:07:58 AM Sunset: 04:49 PM |
Moonrise:06:05 AM Moonset: 02:44 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Light freezing rain |
-19.6 ° C (-3.3°F) |
-13.4 ° C (7.9°F) |
-16.1 ° C (2.9°F) |
% 95 | 0% | 1 | Sunrise:07:58 AM Sunset: 04:50 PM |
Moonrise:07:08 AM Moonset: 03:23 PM Moon Phase ( Waning Crescent ) |
|
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