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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:SSW wind around 10 kt becoming SE in the afternoon. Showers likely, mainly between 10am and 1pm.   Seas 4 to 5 ft.

      High: 48 °F

      SSW 10kt
      4-5ft

    • 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

    • Saturday

      Saturday:SW wind around 10 kt. Showers likely.   Seas around 5 ft.

      High: 47 °F

      SW 10kt
      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: 4am AKDT May 19, 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.

Tuesday
SSW wind around 10 kt becoming SE in the afternoon. Showers likely, mainly between 10am and 1pm. Seas 4 to 5 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.
Saturday
SW wind around 10 kt. Showers likely. Seas around 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: 4am AKDT May 19, 2026-6pm AKDT May 25, 2026
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