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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers after 1am.   Seas around 4 ft.

      Low: 50 °F

      Light Wind
      4ft

    • Monday

      Monday:SE wind 10 to 15 kt becoming SW in the afternoon. Showers, with thunderstorms also possible after 10am.   Seas around 4 ft.

      High: 56 °F

      S 15kt
      4ft

    • Monday Night

      Monday Night:S wind 5 to 15 kt becoming E after midnight. Showers and possibly a thunderstorm.   Seas around 5 ft.

      Low: 49 °F

      S 15kt
      5ft

    • Tuesday

      Tuesday:NNE wind 5 to 15 kt. Showers likely, mainly before 10am.   Seas 5 to 6 ft.

      High: 57 °F

      NNE 15kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.

      Low: 49 °F

      Light Wind
      4ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.

      High: 58 °F

      Light Wind
      3ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.

      Low: 50 °F

      Light Wind
      3ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.

      High: 59 °F

      Light Wind
      3ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.

      Low: 51 °F

      Light Wind
      3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:23 pm AKDT Aug 30, 2026
Forecast Valid: 7pm AKDT Aug 30, 2026-6pm AKDT Sep 6, 2026

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Detailed Forecast


Synopsis: A stronger low will develop in the northern gulf Sunday night and slide down the coastline to Haida Gwaii through Tuesday morning. Widespread fresh breezes to near gales will accompany this system, with wave heights up to 9 ft for the outside waters and up to 14 ft for the offshore waters.

Tonight
Variable winds 5 kt or less. A chance of showers after 1am. Seas around 4 ft.
Monday
SE wind 10 to 15 kt becoming SW in the afternoon. Showers, with thunderstorms also possible after 10am. Seas around 4 ft.
Monday Night
S wind 5 to 15 kt becoming E after midnight. Showers and possibly a thunderstorm. Seas around 5 ft.
Tuesday
NNE wind 5 to 15 kt. Showers likely, mainly before 10am. Seas 5 to 6 ft.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.
Wednesday
Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.
Thursday
Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 3 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: 3:23 pm AKDT Aug 30, 2026
Forecast Valid: 7pm AKDT Aug 30, 2026-6pm AKDT Sep 6, 2026
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