Current weather conditions and 15 day weather forecast for Alto, 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.
| 10 May 2026 Sunday 10 ° C / 50°F ![]() Sunny |
Feels Like : 7.7 ° C / 45.8°F Humidity : % 42 Pressure : 1021 mb Wind Speed : 16.9 kmph / 10.5 miles from N ![]() Visibility : 16 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 May 2026 Sunday | Sunny |
3.8 ° C (38.8°F) |
15.3 ° C (59.5°F) |
9.4 ° C (48.9°F) |
% 44 | 0% | 6.6 | Sunrise:06:03 AM Sunset: 08:46 PM |
Moonrise:03:06 AM Moonset: 01:35 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
3.3 ° C (38°F) |
22.3 ° C (72.1°F) |
12.9 ° C (55.2°F) |
% 49 | 0% | 6.9 | Sunrise:06:02 AM Sunset: 08:48 PM |
Moonrise:03:25 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
13.9 ° C (57.1°F) |
21.5 ° C (70.8°F) |
17.2 ° C (63°F) |
% 44 | 0% | 0.2 | Sunrise:06:01 AM Sunset: 08:49 PM |
Moonrise:03:43 AM Moonset: 04:00 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Sunny |
8.3 ° C (46.9°F) |
20.8 ° C (69.5°F) |
14.8 ° C (58.6°F) |
% 50 | 0% | 4 | Sunrise:06:00 AM Sunset: 08:50 PM |
Moonrise:04:02 AM Moonset: 05:16 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Sunny |
11.1 ° C (52.1°F) |
29.6 ° C (85.3°F) |
20.4 ° C (68.8°F) |
% 48 | 0% | 6 | Sunrise:05:59 AM Sunset: 08:51 PM |
Moonrise:04:22 AM Moonset: 06:37 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Sunny |
16.6 ° C (62°F) |
30.3 ° C (86.6°F) |
23.1 ° C (73.6°F) |
% 57 | 0% | 6 | Sunrise:05:58 AM Sunset: 08:52 PM |
Moonrise:04:46 AM Moonset: 08:02 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
8.5 ° C (47.2°F) |
16.5 ° C (61.6°F) |
12.4 ° C (54.3°F) |
% 67 | 81% | 3 | Sunrise:05:56 AM Sunset: 08:53 PM |
Moonrise:05:18 AM Moonset: 09:28 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Overcast |
8.1 ° C (46.5°F) |
18.4 ° C (65.1°F) |
12.2 ° C (54°F) |
% 65 | 0% | 3 | Sunrise:05:55 AM Sunset: 08:55 PM |
Moonrise:05:59 AM Moonset: 10:50 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
9.8 ° C (49.7°F) |
24.6 ° C (76.3°F) |
17.7 ° C (63.9°F) |
% 45 | 86% | 4 | Sunrise:05:54 AM Sunset: 08:56 PM |
Moonrise:06:54 AM Moonset: 11:59 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Sunny |
13.9 ° C (57°F) |
30.6 ° C (87.1°F) |
22.5 ° C (72.5°F) |
% 55 | 0% | 6 | Sunrise:05:53 AM Sunset: 08:57 PM |
Moonrise:08:04 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
18.9 ° C (66.1°F) |
27.5 ° C (81.6°F) |
23.6 ° C (74.5°F) |
% 55 | 0% | 6 | Sunrise:05:52 AM Sunset: 08:58 PM |
Moonrise:09:23 AM Moonset: 12:52 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Overcast |
13.8 ° C (56.8°F) |
21 ° C (69.8°F) |
17.2 ° C (62.9°F) |
% 78 | 0% | 4 | Sunrise:05:51 AM Sunset: 08:59 PM |
Moonrise:10:44 AM Moonset: 01:31 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
11.6 ° C (52.9°F) |
17 ° C (62.6°F) |
15.5 ° C (59.9°F) |
% 82 | 89% | 4 | Sunrise:05:50 AM Sunset: 09:00 PM |
Moonrise:12:03 PM Moonset: 02:00 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Patchy rain nearby |
15.7 ° C (60.2°F) |
31.2 ° C (88.1°F) |
21.8 ° C (71.3°F) |
% 80 | 81% | 5 | Sunrise:05:50 AM Sunset: 09:01 PM |
Moonrise:01:18 PM Moonset: 02:22 AM Moon Phase ( First Quarter ) |
|