Basin Weather Forecast 15 Days, Weather in Basin Today
Current weather conditions and 15 day weather forecast for Basin, 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 Basin
| 15 December 2025 Monday 7.8 ° C / 46°F  Clear |
Feels Like : 5.7 ° C / 42.3°F Humidity : % 22 Pressure : 1020 mb Wind Speed : 11.5 kmph / 7.2 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Basin, MT, USA
Weather Forecast for next 15 Days for Basin 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 Basin, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 14 December 2025 Sunday | Sunny |
2.7 ° C (36.9°F) |
7.2 ° C (45°F) |
4.3 ° C (39.7°F) |
% 37 | 0% | 0.2 | Sunrise:08:05 AM Sunset: 04:43 PM |
Moonrise:02:58 AM Moonset: 01:29 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Partly Cloudy |
1.7 ° C (35.1°F) |
3.7 ° C (38.7°F) |
2.8 ° C (37°F) |
% 61 | 0% | 0.2 | Sunrise:08:06 AM Sunset: 04:43 PM |
Moonrise:04:04 AM Moonset: 01:47 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Cloudy |
-1.1 ° C (30°F) |
2.7 ° C (36.9°F) |
1.1 ° C (33.9°F) |
% 83 | 0% | 0.2 | Sunrise:08:07 AM Sunset: 04:44 PM |
Moonrise:05:11 AM Moonset: 02:10 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Blowing snow |
-7 ° C (19.5°F) |
1.3 ° C (34.3°F) |
-2.4 ° C (27.8°F) |
% 81 | 87% | 0.1 | Sunrise:08:07 AM Sunset: 04:44 PM |
Moonrise:06:18 AM Moonset: 02:39 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Patchy moderate snow |
-7 ° C (19.4°F) |
-3.4 ° C (25.9°F) |
-4.8 ° C (23.3°F) |
% 76 | 62% | 0.1 | Sunrise:08:08 AM Sunset: 04:44 PM |
Moonrise:07:23 AM Moonset: 03:16 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy snow |
-5.4 ° C (22.3°F) |
1.7 ° C (35.1°F) |
-0.9 ° C (30.3°F) |
% 90 | 78% | 0 | Sunrise:08:09 AM Sunset: 04:45 PM |
Moonrise:08:22 AM Moonset: 04:03 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
-12.2 ° C (10.1°F) |
-6.5 ° C (20.3°F) |
-9.5 ° C (14.8°F) |
% 81 | 0% | 2 | Sunrise:08:09 AM Sunset: 04:45 PM |
Moonrise:09:13 AM Moonset: 05:01 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-13.3 ° C (8.1°F) |
-3.7 ° C (25.3°F) |
-9.6 ° C (14.7°F) |
% 80 | 0% | 2 | Sunrise:08:10 AM Sunset: 04:46 PM |
Moonrise:09:54 AM Moonset: 06:06 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-6.7 ° C (20°F) |
2.8 ° C (37°F) |
-1.2 ° C (29.8°F) |
% 80 | 0% | 2 | Sunrise:08:10 AM Sunset: 04:46 PM |
Moonrise:10:26 AM Moonset: 07:16 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Moderate or heavy snow showers |
-8.6 ° C (16.5°F) |
-4 ° C (24.8°F) |
-4.5 ° C (23.8°F) |
% 80 | 81% | 1 | Sunrise:08:11 AM Sunset: 04:47 PM |
Moonrise:10:52 AM Moonset: 08:28 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Sunny |
-10.9 ° C (12.4°F) |
-0.6 ° C (31°F) |
-7.1 ° C (19.2°F) |
% 76 | 0% | 2 | Sunrise:08:11 AM Sunset: 04:47 PM |
Moonrise:11:13 AM Moonset: 09:40 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
-4.9 ° C (23.2°F) |
3.2 ° C (37.8°F) |
-1.3 ° C (29.7°F) |
% 86 | 0% | 2 | Sunrise:08:11 AM Sunset: 04:48 PM |
Moonrise:11:31 AM Moonset: 10:52 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
-0.9 ° C (30.3°F) |
3.1 ° C (37.6°F) |
1.5 ° C (34.7°F) |
% 87 | 0% | 2 | Sunrise:08:12 AM Sunset: 04:49 PM |
Moonrise:11:48 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Heavy snow |
-7.9 ° C (17.8°F) |
-2.9 ° C (26.8°F) |
-4.3 ° C (24.3°F) |
% 89 | 72% | 1 | Sunrise:08:12 AM Sunset: 04:50 PM |
Moonrise:12:05 PM Moonset: 12:05 AM Moon Phase ( First Quarter ) |
|
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