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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 10 kt. Showers.   Seas around 3 ft.

      High: 56 °F

      S 10kt
      3ft

    • Tonight

      Tonight:WSW wind around 10 kt. Showers, mainly before 10pm.   Seas around 3 ft.

      Low: 51 °F

      WSW 10kt
      3ft

    • Saturday

      Saturday:SW wind 10 to 15 kt. Increasing clouds. Seas 3 to 4 ft.

      High: 56 °F

      SW 15kt
      3-4ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Showers, mainly after 1am.   Seas 2 to 3 ft.

      Low: 50 °F

      Light Wind
      2-3ft

    • Sunday

      Sunday:ENE wind 5 to 10 kt. Showers.   Seas 2 to 3 ft.

      High: 55 °F

      ENE 10kt
      2-3ft

    • Sunday Night

      Sunday Night:ENE wind around 10 kt. Showers likely, mainly after 1am.   Seas around 3 ft.

      Low: 49 °F

      ENE 10kt
      3ft

    • Monday

      Monday:Variable winds 5 kt or less. A chance of showers.   Seas 2 to 3 ft.

      High: 57 °F

      Light Wind
      2-3ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers.   Seas around 2 ft.

      Low: 50 °F

      Light Wind
      2ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. A chance of showers.   Seas around 2 ft.

      High: 58 °F

      Light Wind
      2ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:59 pm AKDT Aug 21, 2026
Forecast Valid: 5pm AKDT Aug 21, 2026-6pm AKDT Aug 28, 2026

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Detailed Forecast


Synopsis: A front is moving through Southeast Alaska Friday afternoon, with winds building to 15 knots over most central and northern inner channels, and 25 knots for northern Lynn Canal. Another system moves into the Gulf Sunday bringing moderate to fresh breezes and fresh seas of 5 ft.

This Afternoon
S wind around 10 kt. Showers. Seas around 3 ft.
Tonight
WSW wind around 10 kt. Showers, mainly before 10pm. Seas around 3 ft.
Saturday
SW wind 10 to 15 kt. Increasing clouds. Seas 3 to 4 ft.
Saturday Night
Variable winds 5 kt or less. Showers, mainly after 1am. Seas 2 to 3 ft.
Sunday
ENE wind 5 to 10 kt. Showers. Seas 2 to 3 ft.
Sunday Night
ENE wind around 10 kt. Showers likely, mainly after 1am. Seas around 3 ft.
Monday
Variable winds 5 kt or less. A chance of showers. Seas 2 to 3 ft.
Monday Night
Variable winds 5 kt or less. A chance of showers. Seas around 2 ft.
Tuesday
Variable winds 5 kt or less. A chance of showers. Seas around 2 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: 2:59 pm AKDT Aug 21, 2026
Forecast Valid: 5pm AKDT Aug 21, 2026-6pm AKDT Aug 28, 2026
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