Gustavus Weather Forecast 15 Days, Weather in Gustavus Today
Current weather conditions and 15 day weather forecast for Gustavus, Alaska, 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 Gustavus
| 15 December 2025 Monday -6.7 ° C / 19.9°F  Overcast |
Feels Like : -12.4 ° C / 9.8°F Humidity : % 77 Pressure : 992 mb Wind Speed : 13.7 kmph / 8.5 miles from NNE  Visibility : 16 km Precipitation (rainfall) : 0.43 mm Cloud (%) : 100 |
15 day weather forecast for Gustavus, AK, USA
Weather Forecast for next 15 Days for Gustavus 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 Gustavus, Alaska 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday |  Moderate snow |
-10.5 ° C (13.1°F) |
-9.1 ° C (15.6°F) |
-9.8 ° C (14.4°F) |
% 88 | 67% | 0 | Sunrise:08:47 AM Sunset: 03:10 PM |
Moonrise:04:28 AM Moonset: 12:31 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Moderate snow |
-13.8 ° C (7.2°F) |
-9.3 ° C (15.2°F) |
-11.5 ° C (11.4°F) |
% 77 | 75% | 0 | Sunrise:08:48 AM Sunset: 03:10 PM |
Moonrise:05:54 AM Moonset: 12:37 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Sunny |
-14 ° C (6.8°F) |
-10.7 ° C (12.8°F) |
-13.1 ° C (8.4°F) |
% 73 | 0% | 0 | Sunrise:08:48 AM Sunset: 03:10 PM |
Moonrise:07:21 AM Moonset: 12:48 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Partly Cloudy |
-14.7 ° C (5.5°F) |
-10.8 ° C (12.5°F) |
-12.4 ° C (9.6°F) |
% 72 | 0% | 0 | Sunrise:08:49 AM Sunset: 03:10 PM |
Moonrise:08:43 AM Moonset: 01:09 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Partly Cloudy |
-15.2 ° C (4.6°F) |
-12.2 ° C (10°F) |
-14.5 ° C (5.9°F) |
% 73 | 0% | 0 | Sunrise:08:50 AM Sunset: 03:11 PM |
Moonrise:09:51 AM Moonset: 01:48 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Cloudy |
-15.2 ° C (4.6°F) |
-10.8 ° C (12.6°F) |
-13.1 ° C (8.4°F) |
% 69 | 0% | 1 | Sunrise:08:50 AM Sunset: 03:11 PM |
Moonrise:10:35 AM Moonset: 02:53 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-18.3 ° C (-1°F) |
-15.1 ° C (4.8°F) |
-15.9 ° C (3.4°F) |
% 73 | 0% | 2 | Sunrise:08:51 AM Sunset: 03:12 PM |
Moonrise:10:59 AM Moonset: 04:16 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-19 ° C (-2.2°F) |
-15.4 ° C (4.3°F) |
-17.9 ° C (-0.2°F) |
% 76 | 0% | 2 | Sunrise:08:51 AM Sunset: 03:12 PM |
Moonrise:11:11 AM Moonset: 05:48 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Overcast |
-17.7 ° C (0.1°F) |
-12.2 ° C (10°F) |
-14.5 ° C (5.9°F) |
% 73 | 0% | 1 | Sunrise:08:52 AM Sunset: 03:13 PM |
Moonrise:11:18 AM Moonset: 07:19 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
-10.2 ° C (13.6°F) |
-6.9 ° C (19.5°F) |
-8.6 ° C (16.6°F) |
% 67 | 0% | 2 | Sunrise:08:52 AM Sunset: 03:14 PM |
Moonrise:11:22 AM Moonset: 08:49 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Sunny |
-10.1 ° C (13.8°F) |
-6 ° C (21.2°F) |
-8.5 ° C (16.8°F) |
% 68 | 0% | 2 | Sunrise:08:52 AM Sunset: 03:14 PM |
Moonrise:11:25 AM Moonset: 10:17 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-9.3 ° C (15.3°F) |
-4.5 ° C (23.9°F) |
-7.4 ° C (18.6°F) |
% 66 | 0% | 2 | Sunrise:08:52 AM Sunset: 03:15 PM |
Moonrise:11:27 AM Moonset: 11:47 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Patchy moderate snow |
-6.6 ° C (20.1°F) |
-2.5 ° C (27.4°F) |
-4.3 ° C (24.3°F) |
% 75 | 72% | 1 | Sunrise:08:52 AM Sunset: 03:16 PM |
Moonrise:11:29 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
-10.9 ° C (12.4°F) |
-2.5 ° C (27.6°F) |
-4.9 ° C (23.2°F) |
% 63 | 0% | 2 | Sunrise:08:52 AM Sunset: 03:17 PM |
Moonrise:11:31 AM Moonset: 01:20 AM Moon Phase ( Waxing Gibbous ) |
|
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