Lake Flat Weather Forecast 15 Days, Weather in Lake Flat Today
Current weather conditions and 15 day weather forecast for Lake Flat, 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 Lake Flat
| 05 December 2025 Friday 2.8 ° C / 37°F  Partly cloudy |
Feels Like : -2.4 ° C / 27.7°F Humidity : % 75 Pressure : 1008 mb Wind Speed : 25.6 kmph / 15.9 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for Lake Flat, SD, USA
Weather Forecast for next 15 Days for Lake Flat 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 Lake Flat, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday | Partly Cloudy |
-5.1 ° C (22.8°F) |
2.4 ° C (36.3°F) |
-0.2 ° C (31.6°F) |
% 82 | 0% | 0.2 | Sunrise:07:09 AM Sunset: 04:11 PM |
Moonrise:04:38 PM Moonset: 08:24 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Overcast |
-5.3 ° C (22.5°F) |
-0.8 ° C (30.6°F) |
-2.7 ° C (27.1°F) |
% 92 | 0% | 0.1 | Sunrise:07:10 AM Sunset: 04:11 PM |
Moonrise:05:52 PM Moonset: 09:28 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Overcast |
-6.8 ° C (19.8°F) |
1 ° C (33.8°F) |
-4 ° C (24.8°F) |
% 87 | 0% | 0.2 | Sunrise:07:11 AM Sunset: 04:11 PM |
Moonrise:07:12 PM Moonset: 10:16 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Partly Cloudy |
-4.7 ° C (23.6°F) |
7.3 ° C (45.1°F) |
0.7 ° C (33.2°F) |
% 77 | 0% | 0.2 | Sunrise:07:12 AM Sunset: 04:11 PM |
Moonrise:08:31 PM Moonset: 10:52 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Cloudy |
0.8 ° C (33.5°F) |
7.6 ° C (45.7°F) |
3.4 ° C (38.1°F) |
% 65 | 0% | 0 | Sunrise:07:13 AM Sunset: 04:11 PM |
Moonrise:09:46 PM Moonset: 11:19 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Light freezing rain |
-1.5 ° C (29.2°F) |
0.8 ° C (33.4°F) |
0.9 ° C (33.6°F) |
% 82 | 63% | 1 | Sunrise:07:14 AM Sunset: 04:11 PM |
Moonrise:10:56 PM Moonset: 11:41 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Light snow |
-5 ° C (23°F) |
0.8 ° C (33.5°F) |
-2.7 ° C (27.2°F) |
% 87 | 81% | 1 | Sunrise:07:15 AM Sunset: 04:11 PM |
Moonrise:No moonrise Moonset: 12:00 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday |  Mist |
-8.7 ° C (16.3°F) |
-5.9 ° C (21.4°F) |
-6.3 ° C (20.6°F) |
% 87 | 64% | 1 | Sunrise:07:16 AM Sunset: 04:11 PM |
Moonrise:12:03 AM Moonset: 12:17 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Ice pellets |
-10.5 ° C (13.1°F) |
-4.7 ° C (23.6°F) |
-7.3 ° C (18.8°F) |
% 94 | 79% | 1 | Sunrise:07:16 AM Sunset: 04:11 PM |
Moonrise:01:08 AM Moonset: 12:34 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday |  Freezing fog |
-3.1 ° C (26.4°F) |
1.8 ° C (35.2°F) |
-1.2 ° C (29.8°F) |
% 96 | 0% | 1 | Sunrise:07:17 AM Sunset: 04:11 PM |
Moonrise:02:12 AM Moonset: 12:52 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Sunny |
-11.4 ° C (11.4°F) |
-7.6 ° C (18.4°F) |
-9.6 ° C (14.7°F) |
% 83 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:11 PM |
Moonrise:03:17 AM Moonset: 01:13 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Overcast |
-9.4 ° C (15°F) |
-0.9 ° C (30.3°F) |
-5.2 ° C (22.6°F) |
% 89 | 0% | 1 | Sunrise:07:19 AM Sunset: 04:12 PM |
Moonrise:04:21 AM Moonset: 01:38 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light snow |
-20.7 ° C (-5.3°F) |
-15.5 ° C (4.1°F) |
-15.8 ° C (3.6°F) |
% 90 | 72% | 1 | Sunrise:07:19 AM Sunset: 04:12 PM |
Moonrise:05:27 AM Moonset: 02:08 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Mist |
-21.8 ° C (-7.3°F) |
-14.1 ° C (6.6°F) |
-19.2 ° C (-2.6°F) |
% 93 | 83% | 1 | Sunrise:07:20 AM Sunset: 04:12 PM |
Moonrise:06:30 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
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