Castlewood Weather Forecast 15 Days, Weather in Castlewood Today
Current weather conditions and 15 day weather forecast for Castlewood, 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 Castlewood
| 12 February 2026 Thursday 1.7 ° C / 35.1°F  Clear |
Feels Like : -1.7 ° C / 28.9°F Humidity : % 64 Pressure : 1019 mb Wind Speed : 11.9 kmph / 7.4 miles from SSE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Castlewood, SD, USA
Weather Forecast for next 15 Days for Castlewood 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 Castlewood, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 February 2026 Thursday | Sunny |
-0.3 ° C (31.5°F) |
10.2 ° C (50.4°F) |
3.5 ° C (38.4°F) |
% 76 | 0% | 0.4 | Sunrise:07:33 AM Sunset: 05:53 PM |
Moonrise:04:48 AM Moonset: 12:44 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Partly Cloudy |
-5.3 ° C (22.5°F) |
11.1 ° C (52°F) |
1.3 ° C (34.3°F) |
% 82 | 0% | 0.4 | Sunrise:07:32 AM Sunset: 05:54 PM |
Moonrise:05:37 AM Moonset: 01:44 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday | Sunny |
-1.8 ° C (28.8°F) |
9.2 ° C (48.6°F) |
2.3 ° C (36.1°F) |
% 85 | 0% | 0.4 | Sunrise:07:30 AM Sunset: 05:55 PM |
Moonrise:06:17 AM Moonset: 02:50 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday | Partly Cloudy |
-1.3 ° C (29.7°F) |
10.4 ° C (50.7°F) |
3.9 ° C (39.1°F) |
% 59 | 0% | 0.4 | Sunrise:07:29 AM Sunset: 05:57 PM |
Moonrise:06:49 AM Moonset: 04:01 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday |  Cloudy |
3.3 ° C (38°F) |
13.2 ° C (55.7°F) |
6.5 ° C (43.7°F) |
% 57 | 0% | 0 | Sunrise:07:27 AM Sunset: 05:58 PM |
Moonrise:07:15 AM Moonset: 05:14 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday |  Patchy rain nearby |
1.7 ° C (35°F) |
8.7 ° C (47.6°F) |
4.5 ° C (40.2°F) |
% 84 | 61% | 1 | Sunrise:07:25 AM Sunset: 06:00 PM |
Moonrise:07:38 AM Moonset: 06:26 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday | Patchy rain nearby |
-1 ° C (30.3°F) |
4 ° C (39.3°F) |
1 ° C (33.9°F) |
% 88 | 79% | 1 | Sunrise:07:24 AM Sunset: 06:01 PM |
Moonrise:07:57 AM Moonset: 07:40 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday |  Blizzard |
-5.4 ° C (22.3°F) |
-0.6 ° C (31°F) |
-2 ° C (28.4°F) |
% 89 | 88% | 1 | Sunrise:07:22 AM Sunset: 06:02 PM |
Moonrise:08:16 AM Moonset: 08:54 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday |  Light freezing rain |
-7.3 ° C (18.8°F) |
-1.9 ° C (28.6°F) |
-4.6 ° C (23.7°F) |
% 88 | 62% | 1 | Sunrise:07:21 AM Sunset: 06:04 PM |
Moonrise:08:35 AM Moonset: 10:09 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday |  Light snow |
-5.2 ° C (22.6°F) |
-1.3 ° C (29.6°F) |
-3.5 ° C (25.6°F) |
% 90 | 74% | 1 | Sunrise:07:19 AM Sunset: 06:05 PM |
Moonrise:08:56 AM Moonset: 11:27 PM Moon Phase ( Waxing Crescent ) |
|
| 22 February 2026 Sunday | Partly Cloudy |
-9 ° C (15.8°F) |
0.1 ° C (32.1°F) |
-4.5 ° C (23.8°F) |
% 93 | 0% | 2 | Sunrise:07:17 AM Sunset: 06:06 PM |
Moonrise:09:21 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 February 2026 Monday | Partly Cloudy |
-9.1 ° C (15.6°F) |
-3.7 ° C (25.3°F) |
-5.5 ° C (22.1°F) |
% 81 | 0% | 2 | Sunrise:07:16 AM Sunset: 06:08 PM |
Moonrise:09:52 AM Moonset: 12:47 AM Moon Phase ( Waxing Crescent ) |
|
| 24 February 2026 Tuesday |  Overcast |
-12.8 ° C (8.9°F) |
-6.9 ° C (19.5°F) |
-9.8 ° C (14.4°F) |
% 78 | 0% | 1 | Sunrise:07:14 AM Sunset: 06:09 PM |
Moonrise:10:32 AM Moonset: 02:06 AM Moon Phase ( First Quarter ) |
|
| 25 February 2026 Wednesday | Light snow |
-7.2 ° C (19.1°F) |
-2.5 ° C (27.6°F) |
-5.3 ° C (22.4°F) |
% 89 | 67% | 1 | Sunrise:07:12 AM Sunset: 06:10 PM |
Moonrise:11:26 AM Moonset: 03:21 AM Moon Phase ( Waxing Gibbous ) |
|
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