Weather for Gustavus, Alaska
Current Weather
Humidity: 86%
Feels Like: -16°F
Wind: NNE 6.5 mph
Wind Gusts: 11.5 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Mon
H: 4°F
L: -0°F
Tue
H: 10°F
L: 1°F
Wed
H: 15°F
L: 7°F
Thu
H: 18°F
L: 10°F
Fri
H: 18°F
L: 13°F
Air Quality
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 72 μg/m3
Astronomical
Sun Transit: 12:01 AM
Sunset: 3:12 PM
Daylight: 6 hrs 20 mins
Moon Transit: 2:23 PM
Moonset: 5:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%
Best Times for Fishing or Hunting
Major Periods
7:59 PM - 10:29 PM1:53 PM - 4:23 PM
Minor Periods
5:17 PM - 6:47 PM10:41 AM - 12:11 AM
Action Rating: 2 out of 5
Extreme Cold Warning issued December 22 at 8:54AM AKST until December 23 at 12:00PM AKST by NWS Juneau AK
Effective: Mon December 22, 2025, 8:54 AM
Expires: Mon December 22, 2025, 5:00 PM
* WHAT...Extremely cold wind chill temperatures as low as 10 below. * WHERE...Cape Fairweather to Lisianski Strait. * WHEN...Until noon AKST Tuesday. * IMPACTS...Frostbite and hypothermia are likely if exposed to these temperatures. An extended period of freezing temperatures could cause ruptured water pipes. * ADDITIONAL DETAILS...The coldest windchill temperatures will be farther inland away from maritime influence.
Wear protective clothing such as a hat, facemask and heavy gloves or mittens if you have plans to be outdoors. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in- ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.
Extreme Cold Warning issued December 22 at 8:54AM AKST until December 23 at 12:00PM AKST by NWS Juneau AK
Effective: Mon December 22, 2025, 8:54 AM
Expires: Mon December 22, 2025, 5:00 PM
* WHAT...Extremely cold wind chill temperatures as low as 20 below. * WHERE...Glacier Bay, Eastern Chichagof Island and Admiralty Island. * WHEN...Until noon AKST Tuesday. * IMPACTS...Frostbite and hypothermia are likely if exposed to these temperatures. An extended period of freezing temperatures could cause ruptured water pipes. * ADDITIONAL DETAILS...The coldest windchill temperatures will be farther inland away from maritime influence.
Wear protective clothing such as a hat, facemask and heavy gloves or mittens if you have plans to be outdoors. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in- ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.
Cold Weather Advisory issued December 22 at 2:29PM AKST until December 23 at 9:00AM AKST by NWS Juneau AK
Effective: Mon December 22, 2025, 2:29 PM
Expires: Mon December 22, 2025, 10:30 PM
* WHAT...Dangerously cold temperatures as low as 5 below. * WHERE...Admiralty Island. * WHEN...Until 9 AM AKST Tuesday. * IMPACTS...Frostbite and hypothermia are possible if exposed to these temperatures.
Cold Weather Advisory issued December 22 at 2:29PM AKST until December 23 at 6:00PM AKST by NWS Juneau AK
Effective: Mon December 22, 2025, 2:29 PM
Expires: Mon December 22, 2025, 10:30 PM
* WHAT...Dangerously cold temperatures as low as 15 below for Gustavus. Dangerously cold temperatures as low as 5 below for Wrangell, Western Kupreanof and Kuiu Islands. * WHERE...Glacier Bay, Western Kupreanof Island and Kuiu Island and City and Borough of Wrangell. * WHEN...Until 6 PM AKST Tuesday. * IMPACTS...Frostbite and hypothermia are possible if exposed to these temperatures.
Cold Weather Advisory issued December 22 at 2:29PM AKST until December 23 at 12:00PM AKST by NWS Juneau AK
Effective: Mon December 22, 2025, 2:29 PM
Expires: Mon December 22, 2025, 10:30 PM
* WHAT...Dangerously cold temperatures as low as 15 below. * WHERE...Eastern Chichagof Island. * WHEN...Until noon AKST Tuesday. * IMPACTS...Frostbite and hypothermia are possible if exposed to these temperatures.
Weather Forecast
Average Temperature: 1.4°F
Average Humidity: 76%
Wind: 9.6 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 1.56 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 71.8 μg/m3
Astronomical
Sun Transit: 12:01 AM
Sunset: 3:12 PM
Daylight: 6 hrs 20 mins
Moon Transit: 2:23 PM
Moonset: 5:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%
Best Times for Fishing or Hunting
Major Periods
7:59 PM - 10:29 PM1:53 PM - 4:23 PM
Minor Periods
5:17 PM - 6:47 PM10:41 AM - 12:11 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 5.2°F
Average Humidity: 68%
Wind: 6.3 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 71.32 μg/m3
Astronomical
Sun Transit: 12:02 AM
Sunset: 3:12 PM
Daylight: 6 hrs 20 mins
Moon Transit: 3:11 PM
Moonset: 7:19 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Best Times for Fishing or Hunting
Major Periods
8:46 PM - 11:16 PM2:41 PM - 5:11 PM
Minor Periods
6:49 PM - 8:19 PM10:48 AM - 12:18 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 9.6°F
Average Humidity: 61%
Wind: 5.6 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 2.03 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 71.56 μg/m3
Astronomical
Sun Transit: 12:02 AM
Sunset: 3:13 PM
Daylight: 6 hrs 21 mins
Moon Transit: 3:57 PM
Moonset: 8:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:27 PM - 5:57 PM
Minor Periods
8:19 PM - 9:49 PM10:52 AM - 12:22 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 13.7°F
Average Humidity: 74%
Wind: 6.7 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 66.84 μg/m3
Astronomical
Sun Transit: 12:03 AM
Sunset: 3:14 PM
Daylight: 6 hrs 21 mins
Moon Transit: 4:41 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:11 PM - 6:41 PM
Minor Periods
9:48 PM - 11:18 PM10:54 AM - 12:24 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 15.6°F
Average Humidity: 72%
Wind: 7.6 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 1.86 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 76.46 μg/m3
Astronomical
Sun Transit: 12:03 AM
Sunset: 3:15 PM
Daylight: 6 hrs 22 mins
Moon Transit: 12:00 AM
Moonset: 11:47 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
12:00 AM - 12:00 AM10:56 AM - 12:26 AM
Action Rating: 2 out of 5