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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind around 15 kt. Partly sunny. Seas around 5 ft.

      High: 55 °F

      W 15kt
      5ft

    • Tonight

      Tonight:W wind 15 to 25 kt. A slight chance of showers after 4am.   Seas 4 to 5 ft.

      Low: 48 °F

      W 25kt
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:W wind around 15 kt. A chance of showers, mainly between 7am and 1pm.   Seas around 4 ft.

      High: 53 °F

      W 15kt
      4ft

    • Tuesday Night

      Tuesday Night:WSW wind 5 to 10 kt. A chance of showers after 1am.   Seas 3 to 4 ft.

      Low: 47 °F

      WSW 10kt
      3-4ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. A chance of showers before 4pm.   Seas around 3 ft.

      High: 54 °F

      Light Wind
      3ft

    • Wednesday Night

      Wednesday Night:W wind 5 to 10 kt. Partly cloudy. Seas around 3 ft.

      Low: 47 °F

      W 10kt
      3ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.

      High: 54 °F

      Light Wind
      2ft

    • Thursday Night

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

      Low: 48 °F

      Light Wind
      2-3ft

    • Friday

      Friday:Variable winds 5 kt or less. A chance of showers.   Seas around 3 ft.

      High: 54 °F

      Light Wind
      3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:21 am AKDT Jun 29, 2026
Forecast Valid: 2pm AKDT Jun 29, 2026-6pm AKDT Jul 5, 2026

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Detailed Forecast


Synopsis: A ridge in the Gulf of Alaska continues to drive onshore northwesterly winds. High pressure, in addition to inland heating, will drive an increase of winds to 20-25 kts during the daytime hours. This weather pattern will lead to gusty winds in Lynn Canal, Cross Sound, Icy Strait Corridor, near Cape Decision, and in southern Chatham Strait. As the ridge weakens Tuesday, expect winds and waves to gradually weaken as well.

This Afternoon
W wind around 15 kt. Partly sunny. Seas around 5 ft.
Tonight
W wind 15 to 25 kt. A slight chance of showers after 4am. Seas 4 to 5 ft.
Tuesday
W wind around 15 kt. A chance of showers, mainly between 7am and 1pm. Seas around 4 ft.
Tuesday Night
WSW wind 5 to 10 kt. A chance of showers after 1am. Seas 3 to 4 ft.
Wednesday
Variable winds 5 kt or less. A chance of showers before 4pm. Seas around 3 ft.
Wednesday Night
W wind 5 to 10 kt. Partly cloudy. Seas around 3 ft.
Thursday
Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.
Thursday Night
Variable winds 5 kt or less. A chance of showers. Seas 2 to 3 ft.
Friday
Variable winds 5 kt or less. A chance of showers. Seas around 3 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: 7:21 am AKDT Jun 29, 2026
Forecast Valid: 2pm AKDT Jun 29, 2026-6pm AKDT Jul 5, 2026
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