Brant Lake Weather Forecast 15 Days, Weather in Brant Lake Today
Current weather conditions and 15 day weather forecast for Brant Lake, 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 Brant Lake
| 19 December 2025 Friday -15.9 ° C / 3.4°F  Clear |
Feels Like : -25.3 ° C / -13.5°F Humidity : % 71 Pressure : 1012 mb Wind Speed : 19.8 kmph / 12.3 miles from NW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Brant Lake, SD, USA
Weather Forecast for next 15 Days for Brant Lake 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 Brant Lake, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 December 2025 Friday |  Partly Cloudy |
-16.2 ° C (2.8°F) |
-4.7 ° C (23.5°F) |
-9.6 ° C (14.7°F) |
% 56 | 0% | 0.2 | Sunrise:07:59 AM Sunset: 04:52 PM |
Moonrise:08:07 AM Moonset: 04:12 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Overcast |
-4 ° C (24.8°F) |
3.3 ° C (37.9°F) |
-1.5 ° C (29.4°F) |
% 82 | 0% | 0.2 | Sunrise:08:00 AM Sunset: 04:53 PM |
Moonrise:08:58 AM Moonset: 05:09 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Mist |
-10 ° C (14°F) |
2.3 ° C (36.1°F) |
-3.8 ° C (25.1°F) |
% 84 | 0% | 0.2 | Sunrise:08:00 AM Sunset: 04:53 PM |
Moonrise:09:41 AM Moonset: 06:12 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Patchy rain nearby |
-1 ° C (30.3°F) |
5 ° C (40.9°F) |
1.1 ° C (33.9°F) |
% 75 | 80% | 0.2 | Sunrise:08:01 AM Sunset: 04:54 PM |
Moonrise:10:15 AM Moonset: 07:21 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Partly Cloudy |
-3.4 ° C (25.8°F) |
-1.3 ° C (29.7°F) |
-1.7 ° C (29°F) |
% 77 | 0% | 0 | Sunrise:08:01 AM Sunset: 04:54 PM |
Moonrise:10:42 AM Moonset: 08:30 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
-2.3 ° C (27.8°F) |
5.6 ° C (42°F) |
1.4 ° C (34.6°F) |
% 93 | 0% | 2 | Sunrise:08:02 AM Sunset: 04:55 PM |
Moonrise:11:06 AM Moonset: 09:40 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
-1.6 ° C (29.1°F) |
8 ° C (46.3°F) |
3.2 ° C (37.7°F) |
% 88 | 0% | 2 | Sunrise:08:02 AM Sunset: 04:56 PM |
Moonrise:11:26 AM Moonset: 10:50 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-2.9 ° C (26.7°F) |
7.1 ° C (44.7°F) |
1.5 ° C (34.6°F) |
% 77 | 0% | 2 | Sunrise:08:02 AM Sunset: 04:56 PM |
Moonrise:11:46 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
3.5 ° C (38.4°F) |
7.3 ° C (45.2°F) |
5.3 ° C (41.6°F) |
% 67 | 0% | 3 | Sunrise:08:02 AM Sunset: 04:57 PM |
Moonrise:12:04 PM Moonset: 12:01 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-0.4 ° C (31.3°F) |
5.1 ° C (41.3°F) |
2.1 ° C (35.8°F) |
% 71 | 0% | 2 | Sunrise:08:03 AM Sunset: 04:58 PM |
Moonrise:12:25 PM Moonset: 01:14 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-0.5 ° C (31°F) |
5.1 ° C (41.2°F) |
1.4 ° C (34.5°F) |
% 66 | 0% | 2 | Sunrise:08:03 AM Sunset: 04:59 PM |
Moonrise:12:50 PM Moonset: 02:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
0.6 ° C (33.1°F) |
7.2 ° C (44.9°F) |
3.1 ° C (37.6°F) |
% 76 | 0% | 2 | Sunrise:08:03 AM Sunset: 04:59 PM |
Moonrise:01:20 PM Moonset: 03:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Partly Cloudy |
2.3 ° C (36.2°F) |
9.2 ° C (48.5°F) |
5.4 ° C (41.7°F) |
% 70 | 0% | 3 | Sunrise:08:03 AM Sunset: 05:00 PM |
Moonrise:02:00 PM Moonset: 05:14 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Fog |
1.6 ° C (34.8°F) |
8.6 ° C (47.5°F) |
5.5 ° C (41.9°F) |
% 87 | 0% | 2 | Sunrise:08:03 AM Sunset: 05:01 PM |
Moonrise:02:53 PM Moonset: 06:34 AM Moon Phase ( Waxing Gibbous ) |
|
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