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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:ENE wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Rain. The rain could be heavy at times.   Seas 5 to 7 ft.

      High: 46 °F

      ⇑ENE 20kt
      5-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:ENE wind 15 to 20 kt becoming W in the evening. Winds could gust as high as 30 kt. Rain. The rain could be heavy at times.   Seas around 7 ft.

      Low: 42 °F

      ENE 20kt
      7ft

    • Thursday

      Thursday:W wind 20 to 25 kt. Rain likely, mainly before 10am.   Seas 5 to 6 ft.

      High: 46 °F

      W 25kt
      5-6ft

    • Thursday Night

      Thursday Night:W wind 10 to 15 kt. Mostly cloudy. Seas 4 to 5 ft.

      Low: 43 °F

      W 15kt
      4-5ft

    • Friday

      Friday:Variable winds 5 kt or less. A chance of rain after 10am.   Seas around 3 ft.

      High: 47 °F

      Light Wind
      3ft

    • Friday Night

      Friday Night:S wind around 10 kt becoming E in the evening. Rain, mainly after 10pm.   Seas 4 to 5 ft.

      Low: 42 °F

      S 10kt
      4-5ft

    • Saturday

      Saturday:E wind 5 to 10 kt. Rain.   Seas around 6 ft.

      High: 46 °F

      E 10kt
      6ft

    • Saturday Night

      Saturday Night:E wind 5 to 10 kt becoming WSW in the evening. Rain.   Seas around 6 ft.

      Low: 42 °F

      E 10kt
      6ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Rain likely.   Seas around 6 ft.

      High: 47 °F

      Light Wind
      6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:43 pm AKDT Apr 28, 2026
Forecast Valid: 1am AKDT Apr 29, 2026-6pm AKDT May 5, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH THIS EVENING...

Synopsis: A near gale force system will lift into the Gulf of Alaska Wednesday, increasing southerly winds across much of the coast and inner channels. A ridge begins to build in the Gulf Thursday.

Wednesday
ENE wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Rain. The rain could be heavy at times. Seas 5 to 7 ft.
Wednesday Night
ENE wind 15 to 20 kt becoming W in the evening. Winds could gust as high as 30 kt. Rain. The rain could be heavy at times. Seas around 7 ft.
Thursday
W wind 20 to 25 kt. Rain likely, mainly before 10am. Seas 5 to 6 ft.
Thursday Night
W wind 10 to 15 kt. Mostly cloudy. Seas 4 to 5 ft.
Friday
Variable winds 5 kt or less. A chance of rain after 10am. Seas around 3 ft.
Friday Night
S wind around 10 kt becoming E in the evening. Rain, mainly after 10pm. Seas 4 to 5 ft.
Saturday
E wind 5 to 10 kt. Rain. Seas around 6 ft.
Saturday Night
E wind 5 to 10 kt becoming WSW in the evening. Rain. Seas around 6 ft.
Sunday
Variable winds 5 kt or less. Rain likely. Seas around 6 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: 11:43 pm AKDT Apr 28, 2026
Forecast Valid: 1am AKDT Apr 29, 2026-6pm AKDT May 5, 2026
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