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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind around 10 kt. Mostly sunny. Seas 6 to 7 ft.

      High: 56 °F

      W 10kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:W wind 5 to 10 kt. Partly cloudy. Seas 5 to 6 ft.

      Low: 49 °F

      W 10kt
      5-6ft

    • Thursday

      Thursday:NE wind 5 to 10 kt. Mostly sunny. Seas around 5 ft.

      High: 60 °F

      NE 10kt
      5ft

    • Thursday Night

      Thursday Night:WNW wind 10 to 15 kt becoming NE after midnight. Mostly clear. Seas around 4 ft.

      Low: 50 °F

      NE 15kt
      4ft

    • Friday

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

      High: 59 °F

      Light Wind
      3ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.

      Low: 49 °F

      Light Wind
      2-3ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.

      High: 56 °F

      Light Wind
      2ft

    • Saturday Night

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

      Low: 49 °F

      Light Wind
      2-3ft

    • Sunday

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

      High: 56 °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: 9:59 am AKDT Sep 9, 2026
Forecast Valid: 12pm AKDT Sep 9, 2026-6pm AKDT Sep 15, 2026

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Detailed Forecast

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

Synopsis: Elevated westerly to southerly winds continue to impact the inner channels Wednesday morning, with winds diminishing by the late afternoon. This break will be short lived as northerly winds build across the inner channels Thursday. Near gale force conditions are forecasted for Lynn Canal and fresh to strong breezes for much of the inner channels.

This Afternoon
W wind around 10 kt. Mostly sunny. Seas 6 to 7 ft.
Tonight
W wind 5 to 10 kt. Partly cloudy. Seas 5 to 6 ft.
Thursday
NE wind 5 to 10 kt. Mostly sunny. Seas around 5 ft.
Thursday Night
WNW wind 10 to 15 kt becoming NE after midnight. Mostly clear. Seas around 4 ft.
Friday
Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.
Friday Night
Variable winds 5 kt or less. Mostly clear. Seas 2 to 3 ft.
Saturday
Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.
Saturday Night
Variable winds 5 kt or less. A chance of showers. Seas 2 to 3 ft.
Sunday
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: 9:59 am AKDT Sep 9, 2026
Forecast Valid: 12pm AKDT Sep 9, 2026-6pm AKDT Sep 15, 2026
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