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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:E wind 30 to 40 kt becoming W 40 to 50 kt. Winds could gust as high as 55 kt. Rain.   Seas 11 ft building to 23 ft.

      Low: 38 °F

      ⇑W 50kt
      Waves Building23ft

      Storm Warning
      Storm Warning

    • Wednesday

      Wednesday:SW wind 35 to 40 kt decreasing to 25 to 30 kt in the afternoon. Winds could gust as high as 45 kt. Rain.   Seas 20 ft subsiding to 12 ft.

      High: 42 °F

      SW 40kt⇓
      20ftWaves Subsiding

      Gale Warning
      Gale Warning

    • Wednesday Night

      Wednesday Night:WSW wind 10 to 20 kt becoming E after midnight. Rain and snow, becoming all rain after midnight.   Seas 10 ft subsiding to 7 ft.

      Low: 38 °F

      WSW 20kt
      10ftWaves Subsiding

    • Thursday

      Thursday:E wind around 10 kt. Showers likely.   Seas around 7 ft.

      High: 42 °F

      E 10kt
      7ft

    • Thursday Night

      Thursday Night:E wind 10 to 15 kt. Showers.   Seas around 7 ft.

      Low: 40 °F

      E 15kt
      7ft

    • Friday

      Friday:E wind around 15 kt. Rain.   Seas 8 to 9 ft.

      High: 43 °F

      E 15kt
      8-9ft

    • Friday Night

      Friday Night:E wind 10 to 15 kt. Rain likely, mainly before 9pm.   Seas 8 to 9 ft.

      Low: 38 °F

      E 15kt
      8-9ft

    • Saturday

      Saturday:ENE wind around 10 kt. A chance of showers.   Seas 7 to 8 ft.

      High: 42 °F

      ENE 10kt
      7-8ft

    • Saturday Night

      Saturday Night:ENE wind around 10 kt. Mostly cloudy. Seas 5 to 7 ft.

      Low: 39 °F

      ENE 10kt
      5-7ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:54 pm AKST Jan 13, 2026
Forecast Valid: 6pm AKST Jan 13, 2026-6pm AKST Jan 20, 2026

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Detailed Forecast

...STORM WARNING LATE TONIGHT...

Synopsis: As of 1pm Tuesday a storm force low is developing near fifty two north, one forty three west, quickly moving north into the Gulf of Alaska. This low is expected to reach the Fairweather grounds by 1 am Wednesday. Most concerning is the broad fetch of southerly storm force winds on the eastern flank of this storm, generating 35 ft seas. For the inner channels of Southeast Alaska, winds will continue to increase through Tuesday evening. Mariners should make ready for southeasterly gale force winds, with storm force in some larger passages.

Tonight
E wind 30 to 40 kt becoming W 40 to 50 kt. Winds could gust as high as 55 kt. Rain. Seas 11 ft building to 23 ft.
Wednesday
SW wind 35 to 40 kt decreasing to 25 to 30 kt in the afternoon. Winds could gust as high as 45 kt. Rain. Seas 20 ft subsiding to 12 ft.
Wednesday Night
WSW wind 10 to 20 kt becoming E after midnight. Rain and snow, becoming all rain after midnight. Seas 10 ft subsiding to 7 ft.
Thursday
E wind around 10 kt. Showers likely. Seas around 7 ft.
Thursday Night
E wind 10 to 15 kt. Showers. Seas around 7 ft.
Friday
E wind around 15 kt. Rain. Seas 8 to 9 ft.
Friday Night
E wind 10 to 15 kt. Rain likely, mainly before 9pm. Seas 8 to 9 ft.
Saturday
ENE wind around 10 kt. A chance of showers. Seas 7 to 8 ft.
Saturday Night
ENE wind around 10 kt. Mostly cloudy. Seas 5 to 7 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 58.2°N 136.63°W
Last Update: 1:54 pm AKST Jan 13, 2026
Forecast Valid: 6pm AKST Jan 13, 2026-6pm AKST Jan 20, 2026
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