Hamilton Weather Forecast 15 Days, Weather in Hamilton Today
Current weather conditions and 15 day weather forecast for Hamilton, 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 Hamilton
| 05 December 2025 Friday -1.3 ° C / 29.6°F  Mist |
Feels Like : -3.9 ° C / 25°F Humidity : % 94 Pressure : 1017 mb Wind Speed : 5.8 kmph / 3.6 miles from SW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Hamilton, MT, USA
Weather Forecast for next 15 Days for Hamilton 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 Hamilton, 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 or heavy snow showers |
-4.9 ° C (23.1°F) |
7.1 ° C (44.8°F) |
0.1 ° C (32.2°F) |
% 86 | 87% | 0.2 | Sunrise:08:04 AM Sunset: 04:51 PM |
Moonrise:05:16 PM Moonset: 09:26 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Moderate or heavy snow showers |
-7.9 ° C (17.7°F) |
2.4 ° C (36.3°F) |
-4.4 ° C (24°F) |
% 88 | 65% | 0.2 | Sunrise:08:05 AM Sunset: 04:50 PM |
Moonrise:06:31 PM Moonset: 10:28 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Moderate or heavy snow showers |
-8.5 ° C (16.7°F) |
2.1 ° C (35.8°F) |
-4.2 ° C (24.4°F) |
% 88 | 74% | 0.2 | Sunrise:08:06 AM Sunset: 04:50 PM |
Moonrise:07:53 PM Moonset: 11:14 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Moderate or heavy snow showers |
-7.6 ° C (18.3°F) |
-2.6 ° C (27.3°F) |
-3.6 ° C (25.6°F) |
% 92 | 73% | 0.2 | Sunrise:08:07 AM Sunset: 04:50 PM |
Moonrise:09:14 PM Moonset: 11:48 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Moderate rain |
-5.5 ° C (22.1°F) |
1.3 ° C (34.3°F) |
-0.4 ° C (31.3°F) |
% 97 | 63% | 0 | Sunrise:08:08 AM Sunset: 04:50 PM |
Moonrise:10:31 PM Moonset: 12:12 PM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Moderate or heavy snow showers |
-5.6 ° C (21.9°F) |
1.4 ° C (34.6°F) |
-1 ° C (30.2°F) |
% 90 | 56% | 1 | Sunrise:08:09 AM Sunset: 04:50 PM |
Moonrise:11:44 PM Moonset: 12:32 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday |  Light freezing rain |
-15 ° C (4.9°F) |
-8.7 ° C (16.3°F) |
-9.1 ° C (15.6°F) |
% 91 | 74% | 1 | Sunrise:08:10 AM Sunset: 04:50 PM |
Moonrise:No moonrise Moonset: 12:48 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday |  Heavy snow |
-14.5 ° C (5.9°F) |
-11.6 ° C (11.1°F) |
-10.8 ° C (12.5°F) |
% 95 | 80% | 1 | Sunrise:08:10 AM Sunset: 04:50 PM |
Moonrise:12:52 AM Moonset: 01:04 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Heavy snow |
-18.6 ° C (-1.5°F) |
-13.4 ° C (7.9°F) |
-13.2 ° C (8.2°F) |
% 97 | 79% | 1 | Sunrise:08:11 AM Sunset: 04:50 PM |
Moonrise:01:59 AM Moonset: 01:19 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday |  Light snow |
-20.8 ° C (-5.4°F) |
-14.2 ° C (6.5°F) |
-13.8 ° C (7.2°F) |
% 97 | 87% | 1 | Sunrise:08:12 AM Sunset: 04:51 PM |
Moonrise:03:05 AM Moonset: 01:36 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Partly Cloudy |
-21.8 ° C (-7.3°F) |
-3.9 ° C (25°F) |
-12.8 ° C (8.9°F) |
% 91 | 0% | 2 | Sunrise:08:13 AM Sunset: 04:51 PM |
Moonrise:04:11 AM Moonset: 01:55 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Light snow |
-18.2 ° C (-0.8°F) |
-12.9 ° C (8.7°F) |
-13.7 ° C (7.4°F) |
% 95 | 64% | 1 | Sunrise:08:14 AM Sunset: 04:51 PM |
Moonrise:05:19 AM Moonset: 02:17 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light snow |
-29.2 ° C (-20.6°F) |
-20.6 ° C (-5.1°F) |
-23.7 ° C (-10.6°F) |
% 98 | 79% | 1 | Sunrise:08:14 AM Sunset: 04:51 PM |
Moonrise:06:25 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Moderate or heavy snow showers |
-24.8 ° C (-12.7°F) |
-15.2 ° C (4.6°F) |
-19 ° C (-2.3°F) |
% 96 | 73% | 1 | Sunrise:08:15 AM Sunset: 04:52 PM |
Moonrise:07:31 AM Moonset: 03:24 PM Moon Phase ( Waning Crescent ) |
|
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