South Glastonbury Weather Forecast 15 Days, Weather in South Glastonbury Today
Current weather conditions and 15 day weather forecast for South Glastonbury, 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 South Glastonbury
| 22 December 2025 Monday 15.6 ° C / 60.1°F  Sunny |
Feels Like : 15.6 ° C / 60.1°F Humidity : % 14 Pressure : 1014 mb Wind Speed : 18.4 kmph / 11.4 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for South Glastonbury, MT, USA
Weather Forecast for next 15 Days for South Glastonbury 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 South Glastonbury, 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 |
-4.2 ° C (24.4°F) |
7.3 ° C (45.1°F) |
2.4 ° C (36.3°F) |
% 44 | 0% | 0.3 | Sunrise:07:55 AM Sunset: 04:40 PM |
Moonrise:02:49 AM Moonset: 01:24 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Partly Cloudy |
-4.3 ° C (24.3°F) |
1.1 ° C (34°F) |
-2.5 ° C (27.4°F) |
% 74 | 0% | 0.2 | Sunrise:07:56 AM Sunset: 04:40 PM |
Moonrise:03:55 AM Moonset: 01:43 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Cloudy |
-3.4 ° C (25.9°F) |
-0.7 ° C (30.7°F) |
-2.2 ° C (28.1°F) |
% 83 | 0% | 0.1 | Sunrise:07:57 AM Sunset: 04:40 PM |
Moonrise:05:01 AM Moonset: 02:07 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Light freezing rain |
-6 ° C (21.2°F) |
0.1 ° C (32.1°F) |
-3.3 ° C (26°F) |
% 72 | 77% | 0.2 | Sunrise:07:58 AM Sunset: 04:41 PM |
Moonrise:06:07 AM Moonset: 02:36 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Sunny |
-6.5 ° C (20.3°F) |
-1.3 ° C (29.6°F) |
-4.1 ° C (24.7°F) |
% 63 | 0% | 0 | Sunrise:07:58 AM Sunset: 04:41 PM |
Moonrise:07:12 AM Moonset: 03:14 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Patchy light snow |
-5.4 ° C (22.3°F) |
-0.2 ° C (31.7°F) |
-3.7 ° C (25.3°F) |
% 80 | 86% | 1 | Sunrise:07:59 AM Sunset: 04:41 PM |
Moonrise:08:10 AM Moonset: 04:01 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Partly Cloudy |
-14.7 ° C (5.5°F) |
-4.1 ° C (24.7°F) |
-10 ° C (13.9°F) |
% 74 | 0% | 2 | Sunrise:07:59 AM Sunset: 04:42 PM |
Moonrise:09:01 AM Moonset: 04:58 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Patchy moderate snow |
-13.5 ° C (7.8°F) |
-4.2 ° C (24.4°F) |
-8.5 ° C (16.7°F) |
% 86 | 84% | 1 | Sunrise:08:00 AM Sunset: 04:42 PM |
Moonrise:09:43 AM Moonset: 06:03 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Heavy snow |
-8 ° C (17.7°F) |
-1.9 ° C (28.6°F) |
-4 ° C (24.8°F) |
% 70 | 84% | 1 | Sunrise:08:00 AM Sunset: 04:43 PM |
Moonrise:10:15 AM Moonset: 07:12 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Sunny |
-17.5 ° C (0.5°F) |
-4.1 ° C (24.6°F) |
-12.1 ° C (10.1°F) |
% 80 | 0% | 2 | Sunrise:08:01 AM Sunset: 04:43 PM |
Moonrise:10:42 AM Moonset: 08:23 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Light freezing rain |
-17.5 ° C (0.4°F) |
-4.3 ° C (24.3°F) |
-13.4 ° C (7.9°F) |
% 79 | 84% | 1 | Sunrise:08:01 AM Sunset: 04:44 PM |
Moonrise:11:04 AM Moonset: 09:35 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Moderate snow |
-26.5 ° C (-15.7°F) |
-20.9 ° C (-5.6°F) |
-21.6 ° C (-6.9°F) |
% 95 | 78% | 1 | Sunrise:08:01 AM Sunset: 04:45 PM |
Moonrise:11:23 AM Moonset: 10:46 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Freezing fog |
-27.9 ° C (-18.3°F) |
-17.5 ° C (0.6°F) |
-23.6 ° C (-10.4°F) |
% 96 | 72% | 1 | Sunrise:08:02 AM Sunset: 04:45 PM |
Moonrise:11:41 AM Moonset: 11:58 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
-22.2 ° C (-7.9°F) |
-7.7 ° C (18.1°F) |
-16.8 ° C (1.8°F) |
% 84 | 0% | 2 | Sunrise:08:02 AM Sunset: 04:46 PM |
Moonrise:11:59 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
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