Sun River Weather Forecast 15 Days, Weather in Sun River Today
Current weather conditions and 15 day weather forecast for Sun River, Montana, 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 Sun River
| 05 December 2025 Friday -0.6 ° C / 30.9°F  Overcast |
Feels Like : -1.9 ° C / 28.5°F Humidity : % 75 Pressure : 1013 mb Wind Speed : 4.3 kmph / 2.7 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Sun River, MT, USA
Weather Forecast for next 15 Days for Sun River 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 Sun River, Montana 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 |  Moderate rain |
-1.3 ° C (29.7°F) |
7.2 ° C (45°F) |
1.2 ° C (34.1°F) |
% 69 | 74% | 0.2 | Sunrise:08:00 AM Sunset: 04:36 PM |
Moonrise:04:58 PM Moonset: 09:24 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Overcast |
-3.5 ° C (25.7°F) |
1.7 ° C (35.1°F) |
-2.1 ° C (28.3°F) |
% 92 | 0% | 0.2 | Sunrise:08:01 AM Sunset: 04:36 PM |
Moonrise:06:14 PM Moonset: 10:26 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Overcast |
-4.4 ° C (24.1°F) |
2.5 ° C (36.5°F) |
-1.1 ° C (30°F) |
% 80 | 0% | 0.2 | Sunrise:08:02 AM Sunset: 04:36 PM |
Moonrise:07:37 PM Moonset: 11:11 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Partly Cloudy |
-2.3 ° C (27.9°F) |
2.9 ° C (37.1°F) |
2.1 ° C (35.7°F) |
% 73 | 0% | 0.1 | Sunrise:08:03 AM Sunset: 04:36 PM |
Moonrise:09:00 PM Moonset: 11:43 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Patchy rain nearby |
3.3 ° C (38°F) |
5.1 ° C (41.2°F) |
4.8 ° C (40.7°F) |
% 69 | 89% | 0 | Sunrise:08:04 AM Sunset: 04:36 PM |
Moonrise:10:18 PM Moonset: 12:06 PM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Heavy snow |
-2.6 ° C (27.3°F) |
0.5 ° C (32.9°F) |
0.2 ° C (32.4°F) |
% 84 | 89% | 1 | Sunrise:08:05 AM Sunset: 04:36 PM |
Moonrise:11:33 PM Moonset: 12:24 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Patchy moderate snow |
-9.2 ° C (15.5°F) |
-4.7 ° C (23.6°F) |
-5.9 ° C (21.4°F) |
% 83 | 88% | 1 | Sunrise:08:05 AM Sunset: 04:36 PM |
Moonrise:No moonrise Moonset: 12:40 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Heavy snow |
-15 ° C (5°F) |
-10.4 ° C (13.2°F) |
-11.8 ° C (10.7°F) |
% 95 | 82% | 1 | Sunrise:08:06 AM Sunset: 04:36 PM |
Moonrise:12:42 AM Moonset: 12:54 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Heavy snow |
-15.4 ° C (4.4°F) |
-12.7 ° C (9.1°F) |
-14.2 ° C (6.4°F) |
% 94 | 84% | 1 | Sunrise:08:07 AM Sunset: 04:36 PM |
Moonrise:01:51 AM Moonset: 01:08 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday |  Light snow |
-26.1 ° C (-15.1°F) |
-16.6 ° C (2.2°F) |
-18.2 ° C (-0.8°F) |
% 94 | 70% | 1 | Sunrise:08:08 AM Sunset: 04:36 PM |
Moonrise:02:58 AM Moonset: 01:24 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Freezing fog |
-31 ° C (-23.8°F) |
-15.3 ° C (4.5°F) |
-25.9 ° C (-14.6°F) |
% 98 | 0% | 1 | Sunrise:08:09 AM Sunset: 04:36 PM |
Moonrise:04:05 AM Moonset: 01:41 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Moderate snow |
-27 ° C (-16.5°F) |
-20.2 ° C (-4.3°F) |
-23 ° C (-9.4°F) |
% 96 | 61% | 1 | Sunrise:08:09 AM Sunset: 04:36 PM |
Moonrise:05:14 AM Moonset: 02:03 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light snow |
-28 ° C (-18.5°F) |
-23.5 ° C (-10.4°F) |
-25.8 ° C (-14.5°F) |
% 97 | 76% | 1 | Sunrise:08:10 AM Sunset: 04:37 PM |
Moonrise:06:22 AM Moonset: 02:30 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Freezing fog |
-33.5 ° C (-28.2°F) |
-20.9 ° C (-5.6°F) |
-26.3 ° C (-15.4°F) |
% 97 | 0% | 1 | Sunrise:08:11 AM Sunset: 04:37 PM |
Moonrise:07:28 AM Moonset: 03:07 PM Moon Phase ( Waning Crescent ) |
|
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