Current weather conditions and 15 day weather forecast for Mellette, 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 May 2026 Monday 1.7 ° C / 35.1°F ![]() Clear |
Feels Like : -1.8 ° C / 28.8°F Humidity : % 78 Pressure : 1021 mb Wind Speed : 12.2 kmph / 7.6 miles from SSE ![]() 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 May 2026 Monday | Sunny |
3.1 ° C (37.6°F) |
27.1 ° C (80.8°F) |
15.1 ° C (59.2°F) |
% 47 | 0% | 6.5 | Sunrise:06:09 AM Sunset: 08:53 PM |
Moonrise:03:31 AM Moonset: 02:53 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Sunny |
14.2 ° C (57.6°F) |
23.6 ° C (74.4°F) |
18.7 ° C (65.7°F) |
% 38 | 0% | 6.4 | Sunrise:06:08 AM Sunset: 08:54 PM |
Moonrise:03:50 AM Moonset: 04:06 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Sunny |
10.2 ° C (50.4°F) |
25.2 ° C (77.3°F) |
17.6 ° C (63.7°F) |
% 43 | 0% | 7.3 | Sunrise:06:07 AM Sunset: 08:55 PM |
Moonrise:04:08 AM Moonset: 05:23 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Patchy rain nearby |
14.5 ° C (58.1°F) |
30.2 ° C (86.4°F) |
21.4 ° C (70.5°F) |
% 45 | 86% | 7.2 | Sunrise:06:06 AM Sunset: 08:57 PM |
Moonrise:04:29 AM Moonset: 06:43 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Sunny |
11.7 ° C (53.1°F) |
25.6 ° C (78.1°F) |
19.9 ° C (67.9°F) |
% 61 | 0% | 0.1 | Sunrise:06:05 AM Sunset: 08:58 PM |
Moonrise:04:54 AM Moonset: 08:07 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Partly Cloudy |
14.7 ° C (58.5°F) |
23 ° C (73.3°F) |
17.4 ° C (63.4°F) |
% 67 | 0% | 5 | Sunrise:06:04 AM Sunset: 08:59 PM |
Moonrise:05:25 AM Moonset: 09:34 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Sunny |
11 ° C (51.8°F) |
23.2 ° C (73.8°F) |
17.2 ° C (62.9°F) |
% 50 | 0% | 5 | Sunrise:06:02 AM Sunset: 09:00 PM |
Moonrise:06:07 AM Moonset: 10:55 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
14.2 ° C (57.6°F) |
22.3 ° C (72.1°F) |
17.6 ° C (63.8°F) |
% 63 | 81% | 4 | Sunrise:06:01 AM Sunset: 09:01 PM |
Moonrise:07:02 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
10.3 ° C (50.6°F) |
20.1 ° C (68.1°F) |
14.7 ° C (58.4°F) |
% 76 | 79% | 3 | Sunrise:06:00 AM Sunset: 09:02 PM |
Moonrise:08:12 AM Moonset: 12:04 AM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Patchy rain nearby |
11.6 ° C (53°F) |
21 ° C (69.7°F) |
15.9 ° C (60.7°F) |
% 73 | 87% | 4 | Sunrise:05:59 AM Sunset: 09:04 PM |
Moonrise:09:31 AM Moonset: 12:57 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Partly Cloudy |
10.8 ° C (51.4°F) |
20.2 ° C (68.4°F) |
15.4 ° C (59.7°F) |
% 52 | 0% | 5 | Sunrise:05:59 AM Sunset: 09:05 PM |
Moonrise:10:52 AM Moonset: 01:36 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Overcast |
5.7 ° C (42.3°F) |
19.6 ° C (67.2°F) |
12.7 ° C (54.9°F) |
% 59 | 0% | 3 | Sunrise:05:58 AM Sunset: 09:06 PM |
Moonrise:12:11 PM Moonset: 02:05 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
11.9 ° C (53.5°F) |
22.2 ° C (72°F) |
16.8 ° C (62.2°F) |
% 53 | 0% | 5 | Sunrise:05:57 AM Sunset: 09:07 PM |
Moonrise:01:25 PM Moonset: 02:28 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Patchy rain nearby |
11.3 ° C (52.4°F) |
19.1 ° C (66.4°F) |
14.4 ° C (57.9°F) |
% 78 | 85% | 3 | Sunrise:05:56 AM Sunset: 09:08 PM |
Moonrise:02:35 PM Moonset: 02:48 AM Moon Phase ( Waxing Gibbous ) |
|