St. Regis Weather Forecast 15 Days, Weather in St. Regis Today
Current weather conditions and 15 day weather forecast for St. Regis, 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 St. Regis
| 14 December 2025 Sunday 3.3 ° C / 37.9°F  Clear |
Feels Like : 1.4 ° C / 34.5°F Humidity : % 40 Pressure : 1017 mb Wind Speed : 7.2 kmph / 4.5 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. Regis, MT, USA
Weather Forecast for next 15 Days for St. Regis 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 St. Regis, 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 ° C (35.6°F) |
13.7 ° C (56.7°F) |
6.8 ° C (44.2°F) |
% 51 | 0% | 0.2 | Sunrise:08:20 AM Sunset: 04:50 PM |
Moonrise:03:11 AM Moonset: 01:38 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Overcast |
1.4 ° C (34.5°F) |
7.8 ° C (46°F) |
4 ° C (39.1°F) |
% 84 | 0% | 0 | Sunrise:08:21 AM Sunset: 04:50 PM |
Moonrise:04:18 AM Moonset: 01:55 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Moderate rain |
2.1 ° C (35.8°F) |
6.6 ° C (43.9°F) |
4.4 ° C (40°F) |
% 90 | 88% | 0.1 | Sunrise:08:21 AM Sunset: 04:51 PM |
Moonrise:05:27 AM Moonset: 02:17 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Blizzard |
-1.9 ° C (28.6°F) |
3.8 ° C (38.8°F) |
0.7 ° C (33.2°F) |
% 87 | 84% | 0.1 | Sunrise:08:22 AM Sunset: 04:51 PM |
Moonrise:06:34 AM Moonset: 02:45 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Light snow |
-5.9 ° C (21.5°F) |
4 ° C (39.2°F) |
-2.3 ° C (27.9°F) |
% 88 | 66% | 0 | Sunrise:08:23 AM Sunset: 04:51 PM |
Moonrise:07:40 AM Moonset: 03:22 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Moderate or heavy snow showers |
-8.7 ° C (16.3°F) |
0.3 ° C (32.6°F) |
-2.8 ° C (27°F) |
% 88 | 71% | 1 | Sunrise:08:23 AM Sunset: 04:52 PM |
Moonrise:08:39 AM Moonset: 04:09 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Patchy moderate snow |
-10 ° C (14.1°F) |
-0.2 ° C (31.7°F) |
-6.2 ° C (20.8°F) |
% 88 | 60% | 1 | Sunrise:08:24 AM Sunset: 04:52 PM |
Moonrise:09:30 AM Moonset: 05:06 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Light snow |
-9.5 ° C (14.8°F) |
1 ° C (33.9°F) |
-4.6 ° C (23.6°F) |
% 92 | 87% | 1 | Sunrise:08:24 AM Sunset: 04:53 PM |
Moonrise:10:10 AM Moonset: 06:12 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Patchy moderate snow |
-5.9 ° C (21.4°F) |
-2.8 ° C (27°F) |
-3.6 ° C (25.5°F) |
% 87 | 78% | 1 | Sunrise:08:25 AM Sunset: 04:53 PM |
Moonrise:10:41 AM Moonset: 07:24 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Mist |
-10.9 ° C (12.4°F) |
-2.1 ° C (28.3°F) |
-7.3 ° C (18.8°F) |
% 91 | 79% | 1 | Sunrise:08:25 AM Sunset: 04:54 PM |
Moonrise:11:06 AM Moonset: 08:36 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Heavy snow |
-13.7 ° C (7.3°F) |
-4.3 ° C (24.2°F) |
-7.8 ° C (18°F) |
% 94 | 87% | 1 | Sunrise:08:26 AM Sunset: 04:54 PM |
Moonrise:11:26 AM Moonset: 09:50 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Light snow |
-24.2 ° C (-11.5°F) |
-15.9 ° C (3.4°F) |
-18.3 ° C (-1°F) |
% 94 | 64% | 1 | Sunrise:08:26 AM Sunset: 04:55 PM |
Moonrise:11:43 AM Moonset: 11:03 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Freezing fog |
-25.5 ° C (-13.9°F) |
-15.5 ° C (4°F) |
-21.5 ° C (-6.6°F) |
% 96 | 0% | 1 | Sunrise:08:26 AM Sunset: 04:56 PM |
Moonrise:11:59 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Freezing fog |
-23.7 ° C (-10.6°F) |
-8.4 ° C (17°F) |
-18.8 ° C (-1.8°F) |
% 95 | 0% | 1 | Sunrise:08:27 AM Sunset: 04:57 PM |
Moonrise:12:15 PM Moonset: 12:17 AM Moon Phase ( First Quarter ) |
|
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