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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 10 to 15 kt. Scattered showers, mainly after 4am.   Seas around 5 ft.

      Low: 43 °F

      SW 15kt
      5ft

    • Tuesday

      Tuesday:SE wind around 10 kt. Showers likely, mainly between 10am and 1pm.   Seas around 4 ft.

      High: 48 °F

      SE 10kt
      4ft

    • Tuesday Night

      Tuesday Night:ESE wind around 10 kt. Showers likely, mainly after 4am.   Seas around 4 ft.

      Low: 45 °F

      ESE 10kt
      4ft

    • Wednesday

      Wednesday:E wind 20 to 25 kt, with gusts as high as 30 kt. Rain.   Seas 5 to 6 ft.

      High: 48 °F

      E 25kt
      5-6ft

    • Wednesday Night

      Wednesday Night:ENE wind 15 to 20 kt becoming S in the evening. Rain, mainly before 4am.   Seas 6 to 7 ft.

      Low: 45 °F

      S 20kt
      6-7ft

    • Thursday

      Thursday:WSW wind around 15 kt. A chance of showers.   Seas 6 to 7 ft.

      High: 48 °F

      WSW 15kt
      6-7ft

    • Thursday Night

      Thursday Night:WSW wind around 10 kt. Showers.   Seas around 4 ft.

      Low: 42 °F

      WSW 10kt
      4ft

    • Friday

      Friday:SSW wind around 10 kt becoming WSW in the morning. Showers.   Seas around 4 ft.

      High: 47 °F

      WSW 10kt
      4ft

    • Friday Night

      Friday Night:W wind around 10 kt. Showers likely.   Seas 4 to 5 ft.

      Low: 42 °F

      W 10kt
      4-5ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:10 pm AKDT May 18, 2026
Forecast Valid: 10pm AKDT May 18, 2026-6pm AKDT May 25, 2026

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Detailed Forecast


Synopsis: Winds and seas continue a diminishing trend over the eastern Gulf of Alaska on Tuesday, before building up again late Tuesday as a gale force system moves into the gulf, arriving in the panhandle on Wednesday.

Tonight
SW wind 10 to 15 kt. Scattered showers, mainly after 4am. Seas around 5 ft.
Tuesday
SE wind around 10 kt. Showers likely, mainly between 10am and 1pm. Seas around 4 ft.
Tuesday Night
ESE wind around 10 kt. Showers likely, mainly after 4am. Seas around 4 ft.
Wednesday
E wind 20 to 25 kt, with gusts as high as 30 kt. Rain. Seas 5 to 6 ft.
Wednesday Night
ENE wind 15 to 20 kt becoming S in the evening. Rain, mainly before 4am. Seas 6 to 7 ft.
Thursday
WSW wind around 15 kt. A chance of showers. Seas 6 to 7 ft.
Thursday Night
WSW wind around 10 kt. Showers. Seas around 4 ft.
Friday
SSW wind around 10 kt becoming WSW in the morning. Showers. Seas around 4 ft.
Friday Night
W wind around 10 kt. Showers likely. Seas 4 to 5 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: 4:10 pm AKDT May 18, 2026
Forecast Valid: 10pm AKDT May 18, 2026-6pm AKDT May 25, 2026
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