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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:W wind around 15 kt. Rain likely, mainly after 7pm.   Seas 5 to 6 ft.

      Low: 50 °F

      W 15kt
      5-6ft

    • Thursday

      Thursday:WSW wind 15 to 20 kt. Rain.   Seas around 5 ft.

      High: 55 °F

      WSW 20kt
      5ft

    • Thursday Night

      Thursday Night:WSW wind around 15 kt. Showers.   Seas around 4 ft.

      Low: 51 °F

      WSW 15kt
      4ft

    • Friday

      Friday:WSW wind 5 to 10 kt becoming S in the afternoon. Showers likely, mainly before 10am.   Seas around 5 ft.

      High: 57 °F

      WSW 10kt
      5ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 4 to 5 ft.

      Low: 48 °F

      Light Wind
      4-5ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Partly sunny. Seas around 4 ft.

      High: 57 °F

      Light Wind
      4ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.

      Low: 49 °F

      Light Wind
      3ft

    • Sunday

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

      High: 56 °F

      Light Wind
      2-3ft

    • Sunday Night

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

      Low: 49 °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: 3:44 pm AKDT Jul 22, 2026
Forecast Valid: 6pm AKDT Jul 22, 2026-6pm AKDT Jul 29, 2026

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Detailed Forecast


Synopsis: High pressure in the Gulf of Alaska will strengthen overnight, bringing strong breezes to both outer and inner waters, expected to peak Thursday night. Weak low pressure then moves in through Friday displacing the ridge, causing winds to diminish across the region.

Tonight
W wind around 15 kt. Rain likely, mainly after 7pm. Seas 5 to 6 ft.
Thursday
WSW wind 15 to 20 kt. Rain. Seas around 5 ft.
Thursday Night
WSW wind around 15 kt. Showers. Seas around 4 ft.
Friday
WSW wind 5 to 10 kt becoming S in the afternoon. Showers likely, mainly before 10am. Seas around 5 ft.
Friday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 4 to 5 ft.
Saturday
Variable winds 5 kt or less. Partly sunny. Seas around 4 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.
Sunday
Variable winds 5 kt or less. A chance of showers. Seas 2 to 3 ft.
Sunday Night
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: 3:44 pm AKDT Jul 22, 2026
Forecast Valid: 6pm AKDT Jul 22, 2026-6pm AKDT Jul 29, 2026
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