Merton Weather Forecast 15 Days, Weather in Merton Today
Current weather conditions and 15 day weather forecast for Merton, 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 Merton
| 15 May 2026 Friday 7.8 ° C / 46°F  Sunny |
Feels Like : 5 ° C / 41°F Humidity : % 79 Pressure : 1005 mb Wind Speed : 16.6 kmph / 10.3 miles from WSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Merton, SD, USA
Weather Forecast for next 15 Days for Merton 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 Merton, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 May 2026 Friday | Sunny |
11.2 ° C (52.2°F) |
28 ° C (82.4°F) |
19.6 ° C (67.2°F) |
% 33 | 0% | 7.9 | Sunrise:06:01 AM Sunset: 08:52 PM |
Moonrise:04:50 AM Moonset: 08:01 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday |  Patchy rain nearby |
12.4 ° C (54.2°F) |
23.8 ° C (74.9°F) |
17.9 ° C (64.2°F) |
% 39 | 84% | 7.2 | Sunrise:06:00 AM Sunset: 08:53 PM |
Moonrise:05:22 AM Moonset: 09:27 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday |  Moderate rain |
11.5 ° C (52.7°F) |
23.4 ° C (74.1°F) |
15.9 ° C (60.6°F) |
% 76 | 86% | 6.7 | Sunrise:05:59 AM Sunset: 08:54 PM |
Moonrise:06:03 AM Moonset: 10:48 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
5.7 ° C (42.3°F) |
12.5 ° C (54.5°F) |
8.9 ° C (48.1°F) |
% 75 | 80% | 2.1 | Sunrise:05:58 AM Sunset: 08:55 PM |
Moonrise:06:59 AM Moonset: 11:57 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Patchy rain nearby |
3.4 ° C (38.2°F) |
18.3 ° C (65°F) |
7.7 ° C (45.8°F) |
% 74 | 85% | 0 | Sunrise:05:57 AM Sunset: 08:56 PM |
Moonrise:08:08 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Moderate rain |
9.1 ° C (48.3°F) |
12.4 ° C (54.3°F) |
10.9 ° C (51.7°F) |
% 78 | 86% | 3 | Sunrise:05:56 AM Sunset: 08:58 PM |
Moonrise:09:28 AM Moonset: 12:50 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
6.1 ° C (43°F) |
12.7 ° C (54.8°F) |
9.4 ° C (49°F) |
% 80 | 0% | 2 | Sunrise:05:55 AM Sunset: 08:59 PM |
Moonrise:10:48 AM Moonset: 01:30 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
6.9 ° C (44.4°F) |
13.8 ° C (56.8°F) |
9.7 ° C (49.4°F) |
% 75 | 85% | 2 | Sunrise:05:54 AM Sunset: 09:00 PM |
Moonrise:12:06 PM Moonset: 02:00 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
6.5 ° C (43.8°F) |
24.8 ° C (76.7°F) |
15.6 ° C (60.1°F) |
% 66 | 0% | 5 | Sunrise:05:53 AM Sunset: 09:01 PM |
Moonrise:01:21 PM Moonset: 02:23 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday | Patchy rain nearby |
14.3 ° C (57.7°F) |
18.2 ° C (64.8°F) |
16.3 ° C (61.3°F) |
% 82 | 82% | 4 | Sunrise:05:52 AM Sunset: 09:02 PM |
Moonrise:02:30 PM Moonset: 02:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Moderate rain |
13.1 ° C (55.6°F) |
20 ° C (67.9°F) |
16.3 ° C (61.4°F) |
% 87 | 89% | 4 | Sunrise:05:51 AM Sunset: 09:03 PM |
Moonrise:03:39 PM Moonset: 03:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday |  Cloudy |
11.7 ° C (53.1°F) |
23.5 ° C (74.4°F) |
16.8 ° C (62.2°F) |
% 80 | 0% | 4 | Sunrise:05:51 AM Sunset: 09:04 PM |
Moonrise:04:45 PM Moonset: 03:18 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 May 2026 Wednesday | Patchy rain nearby |
14.3 ° C (57.7°F) |
24.6 ° C (76.3°F) |
19.2 ° C (66.6°F) |
% 72 | 82% | 4 | Sunrise:05:50 AM Sunset: 09:05 PM |
Moonrise:05:52 PM Moonset: 03:36 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 May 2026 Thursday | Patchy rain nearby |
9.3 ° C (48.7°F) |
20.9 ° C (69.7°F) |
15.1 ° C (59.2°F) |
% 61 | 68% | 4 | Sunrise:05:49 AM Sunset: 09:06 PM |
Moonrise:06:59 PM Moonset: 03:56 AM Moon Phase ( Waxing Gibbous ) |
|
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