Boulder Airport Weather Forecast 15 Days, Weather in 3U9 Today
Current weather conditions and 15 day weather forecast for Boulder Airport, 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 Boulder Airport
| 15 December 2025 Monday -2.8 ° C / 27°F  Clear |
Feels Like : -5.5 ° C / 22.2°F Humidity : % 81 Pressure : 1018 mb Wind Speed : 6.5 kmph / 4 miles from WSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Boulder Airport, MT, USA
Weather Forecast for next 15 Days for Boulder Airport 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 Boulder Airport, 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 (27.1°F) |
9 ° C (48.2°F) |
0.3 ° C (32.5°F) |
% 40 | 0% | 0.2 | Sunrise:08:04 AM Sunset: 04:42 PM |
Moonrise:02:56 AM Moonset: 01:28 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Partly Cloudy |
-3.3 ° C (26.1°F) |
6.7 ° C (44.1°F) |
-0.3 ° C (31.5°F) |
% 59 | 0% | 0.2 | Sunrise:08:05 AM Sunset: 04:42 PM |
Moonrise:04:03 AM Moonset: 01:47 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Partly Cloudy |
-4.7 ° C (23.5°F) |
5.9 ° C (42.6°F) |
-0.6 ° C (30.9°F) |
% 78 | 0% | 0.2 | Sunrise:08:06 AM Sunset: 04:43 PM |
Moonrise:05:10 AM Moonset: 02:09 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Moderate or heavy snow showers |
-5.9 ° C (21.4°F) |
4.7 ° C (40.5°F) |
-2.8 ° C (26.9°F) |
% 76 | 72% | 0.2 | Sunrise:08:06 AM Sunset: 04:43 PM |
Moonrise:06:17 AM Moonset: 02:38 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Patchy moderate snow |
-6 ° C (21.2°F) |
-2.2 ° C (28°F) |
-4.2 ° C (24.5°F) |
% 72 | 84% | 0.1 | Sunrise:08:07 AM Sunset: 04:43 PM |
Moonrise:07:22 AM Moonset: 03:15 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy snow |
-7.5 ° C (18.6°F) |
4.1 ° C (39.4°F) |
-3.2 ° C (26.2°F) |
% 87 | 74% | 0 | Sunrise:08:08 AM Sunset: 04:44 PM |
Moonrise:08:21 AM Moonset: 04:02 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
-14.2 ° C (6.5°F) |
-3.6 ° C (25.6°F) |
-8.8 ° C (16.1°F) |
% 76 | 0% | 2 | Sunrise:08:08 AM Sunset: 04:44 PM |
Moonrise:09:12 AM Moonset: 05:00 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-14.9 ° C (5.2°F) |
-2.2 ° C (28°F) |
-10.8 ° C (12.6°F) |
% 81 | 0% | 2 | Sunrise:08:09 AM Sunset: 04:45 PM |
Moonrise:09:53 AM Moonset: 06:05 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Partly Cloudy |
-11.3 ° C (11.7°F) |
3.9 ° C (39°F) |
-4.9 ° C (23.3°F) |
% 82 | 0% | 2 | Sunrise:08:09 AM Sunset: 04:45 PM |
Moonrise:10:25 AM Moonset: 07:15 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Moderate or heavy snow showers |
-11.4 ° C (11.5°F) |
-1.1 ° C (30°F) |
-5.6 ° C (21.8°F) |
% 75 | 70% | 1 | Sunrise:08:09 AM Sunset: 04:46 PM |
Moonrise:10:50 AM Moonset: 08:27 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Sunny |
-13.1 ° C (8.4°F) |
0.7 ° C (33.3°F) |
-8.5 ° C (16.8°F) |
% 75 | 0% | 2 | Sunrise:08:10 AM Sunset: 04:47 PM |
Moonrise:11:12 AM Moonset: 09:39 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
-9.1 ° C (15.5°F) |
5.4 ° C (41.8°F) |
-4.1 ° C (24.6°F) |
% 86 | 0% | 2 | Sunrise:08:10 AM Sunset: 04:47 PM |
Moonrise:11:30 AM Moonset: 10:51 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
-5.1 ° C (22.8°F) |
6.5 ° C (43.8°F) |
0.2 ° C (32.4°F) |
% 82 | 0% | 2 | Sunrise:08:10 AM Sunset: 04:48 PM |
Moonrise:11:47 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Patchy heavy snow |
-11.6 ° C (11.2°F) |
-3.9 ° C (24.9°F) |
-6 ° C (21.3°F) |
% 87 | 70% | 1 | Sunrise:08:11 AM Sunset: 04:49 PM |
Moonrise:12:04 PM Moonset: 12:04 AM Moon Phase ( First Quarter ) |
|
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