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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:Variable winds 5 kt or less. Partly sunny. Seas around 3 ft.

      High: 57 °F

      Light Wind
      3ft

    • Monday Night

      Monday Night:WSW wind 5 to 10 kt. A chance of showers after 4am.   Seas around 3 ft.

      Low: 49 °F

      WSW 10kt
      3ft

    • Tuesday

      Tuesday:W wind 5 to 15 kt. A chance of showers, mainly before 10am.   Seas 3 to 4 ft.

      High: 56 °F

      W 15kt
      3-4ft

    • Tuesday Night

      Tuesday Night:W wind 20 to 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas around 6 ft.

      Low: 50 °F

      W 25kt
      6ft

    • Wednesday

      Wednesday:W wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas around 6 ft.

      High: 55 °F

      W 20kt
      6ft

    • Wednesday Night

      Wednesday Night:W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers.   Seas 6 to 7 ft.

      Low: 49 °F

      W 20kt
      6-7ft

    • Thursday

      Thursday:Variable winds 5 kt or less. A chance of showers.   Seas around 4 ft.

      High: 54 °F

      Light Wind
      4ft

    • Thursday Night

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

      Low: 48 °F

      W 10kt
      4ft

    • Friday

      Friday:Variable winds 5 kt or less. Showers likely.   Seas 3 to 4 ft.

      High: 54 °F

      Light Wind
      3-4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:56 am AKDT Jul 20, 2026
Forecast Valid: 3am AKDT Jul 20, 2026-6pm AKDT Jul 26, 2026

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Detailed Forecast


Synopsis: High pressure in the Gulf of Alaska will persist for much of the week, bringing broad westerly to northwesterly winds and local sea breezes. A brief southeasterly shift Monday night for the northeast coast may bring showers, low clouds and low visibility. Winds for the southern coastal waters and near Cape Spencer into Cross Sound could become strong with elevated seas by later Tuesday or Wednesday as the gradient tightens.

Monday
Variable winds 5 kt or less. Partly sunny. Seas around 3 ft.
Monday Night
WSW wind 5 to 10 kt. A chance of showers after 4am. Seas around 3 ft.
Tuesday
W wind 5 to 15 kt. A chance of showers, mainly before 10am. Seas 3 to 4 ft.
Tuesday Night
W wind 20 to 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas around 6 ft.
Wednesday
W wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas around 6 ft.
Wednesday Night
W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers. Seas 6 to 7 ft.
Thursday
Variable winds 5 kt or less. A chance of showers. Seas around 4 ft.
Thursday Night
W wind 5 to 10 kt. Showers likely. Seas around 4 ft.
Friday
Variable winds 5 kt or less. Showers likely. Seas 3 to 4 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: 1:56 am AKDT Jul 20, 2026
Forecast Valid: 3am AKDT Jul 20, 2026-6pm AKDT Jul 26, 2026
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