Geyser Weather Forecast 15 Days, Weather in Geyser Today
Current weather conditions and 15 day weather forecast for Geyser, 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 Geyser
| 05 December 2025 Friday 1.6 ° C / 34.9°F  Overcast |
Feels Like : -1.4 ° C / 29.4°F Humidity : % 71 Pressure : 1012 mb Wind Speed : 10.1 kmph / 6.3 miles from W  Visibility : 16 km Precipitation (rainfall) : 0.76 mm Cloud (%) : 100 |
15 day weather forecast for Geyser, MT, USA
Weather Forecast for next 15 Days for Geyser 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 Geyser, 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 |
-5.9 ° C (21.4°F) |
1.2 ° C (34.2°F) |
-1.6 ° C (29.2°F) |
% 88 | 88% | 0.2 | Sunrise:07:53 AM Sunset: 04:32 PM |
Moonrise:04:55 PM Moonset: 09:16 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Moderate or heavy snow showers |
-2.2 ° C (28°F) |
0.9 ° C (33.6°F) |
-0.1 ° C (31.9°F) |
% 88 | 73% | 0.2 | Sunrise:07:54 AM Sunset: 04:32 PM |
Moonrise:06:10 PM Moonset: 10:18 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Partly Cloudy |
-3.9 ° C (25°F) |
0.6 ° C (33.1°F) |
-0.9 ° C (30.3°F) |
% 74 | 0% | 0.2 | Sunrise:07:55 AM Sunset: 04:32 PM |
Moonrise:07:33 PM Moonset: 11:04 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Patchy rain nearby |
0 ° C (32°F) |
2.8 ° C (37°F) |
2 ° C (35.5°F) |
% 67 | 89% | 0.2 | Sunrise:07:56 AM Sunset: 04:31 PM |
Moonrise:08:55 PM Moonset: 11:36 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Patchy rain nearby |
-1.6 ° C (29.1°F) |
5.4 ° C (41.7°F) |
2.8 ° C (37°F) |
% 70 | 89% | 0 | Sunrise:07:57 AM Sunset: 04:31 PM |
Moonrise:10:13 PM Moonset: 12:00 PM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Moderate snow |
-4.5 ° C (23.9°F) |
2 ° C (35.7°F) |
-1.5 ° C (29.3°F) |
% 67 | 85% | 1 | Sunrise:07:58 AM Sunset: 04:31 PM |
Moonrise:11:27 PM Moonset: 12:18 PM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Moderate or heavy snow showers |
-12.5 ° C (9.5°F) |
-8.6 ° C (16.6°F) |
-8.9 ° C (16°F) |
% 89 | 86% | 1 | Sunrise:07:59 AM Sunset: 04:31 PM |
Moonrise:No moonrise Moonset: 12:34 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Moderate or heavy snow showers |
-9.7 ° C (14.6°F) |
4.2 ° C (39.5°F) |
-1.8 ° C (28.8°F) |
% 80 | 61% | 1 | Sunrise:08:00 AM Sunset: 04:31 PM |
Moonrise:12:37 AM Moonset: 12:48 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Light freezing rain |
-15.6 ° C (3.9°F) |
5.7 ° C (42.2°F) |
-4 ° C (24.8°F) |
% 69 | 62% | 1 | Sunrise:08:00 AM Sunset: 04:32 PM |
Moonrise:01:45 AM Moonset: 01:03 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Light freezing rain |
-16.2 ° C (2.9°F) |
-5.7 ° C (21.8°F) |
-11.1 ° C (11.9°F) |
% 85 | 78% | 1 | Sunrise:08:01 AM Sunset: 04:32 PM |
Moonrise:02:51 AM Moonset: 01:19 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Patchy moderate snow |
-4.9 ° C (23.2°F) |
2.4 ° C (36.3°F) |
-0.7 ° C (30.8°F) |
% 84 | 77% | 1 | Sunrise:08:02 AM Sunset: 04:32 PM |
Moonrise:03:59 AM Moonset: 01:37 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Heavy snow |
-16.1 ° C (3°F) |
-12.2 ° C (10.1°F) |
-13.1 ° C (8.4°F) |
% 95 | 70% | 1 | Sunrise:08:03 AM Sunset: 04:32 PM |
Moonrise:05:07 AM Moonset: 01:59 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Light freezing rain |
-15 ° C (5°F) |
3.5 ° C (38.3°F) |
-4.1 ° C (24.6°F) |
% 80 | 60% | 1 | Sunrise:08:03 AM Sunset: 04:32 PM |
Moonrise:06:14 AM Moonset: 02:26 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Mist |
-23.2 ° C (-9.8°F) |
-18.9 ° C (-2.1°F) |
-19.9 ° C (-3.7°F) |
% 94 | 0% | 1 | Sunrise:08:04 AM Sunset: 04:33 PM |
Moonrise:07:20 AM Moonset: 03:03 PM Moon Phase ( Waning Crescent ) |
|
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