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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 10 to 15 kt. Showers, mainly before 4pm.   Seas 6 to 7 ft.

      High: 46 °F

      S 15kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:SSW wind around 15 kt. A chance of showers, mainly before 10pm.   Seas 5 to 6 ft.

      Low: 42 °F

      SSW 15kt
      5-6ft

    • Monday

      Monday:SSW wind 5 to 10 kt becoming SSE in the afternoon. A slight chance of rain before 10am, then a chance for sprinkles before ending.   Seas 3 to 4 ft.

      High: 47 °F

      SSW 10kt
      3-4ft

    • Monday Night

      Monday Night:ENE wind 5 to 10 kt. A chance of rain after 7pm.   Seas around 3 ft.

      Low: 42 °F

      ENE 10kt
      3ft

    • Tuesday

      Tuesday:ENE wind around 10 kt. A chance of rain.   Seas 2 to 3 ft.

      High: 49 °F

      ENE 10kt
      2-3ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Rain.   Seas 2 to 3 ft.

      Low: 43 °F

      Light Wind
      2-3ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Showers.   Seas around 3 ft.

      High: 48 °F

      Light Wind
      3ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Showers.   Seas around 3 ft.

      Low: 42 °F

      Light Wind
      3ft

    • Thursday

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

      High: 47 °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: 6:31 am AKDT May 10, 2026
Forecast Valid: 8am AKDT May 10, 2026-6pm AKDT May 16, 2026

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Detailed Forecast


Synopsis: A 990mb low located 50nm SW of Cape Suckling will weaken as it moves NW towards Prince William Sound through Sunday before dissipating with its associated front pushing into the N Gulf coast. Winds decrease through Sunday to Fresh Breeze or less with strongest winds remaining within N Glacier Bay, N Lynn Canal and Taiya Inlet. Overall seas decreases through Sunday, down to 5 ft or less along the coast by Monday morning. Brief break expected through Monday before another front pushes through the Gulf by Tuesday morning with increasing seas across the Gulf and winds along the N Gulf coast by Tuesday afternoon.

Today
S wind 10 to 15 kt. Showers, mainly before 4pm. Seas 6 to 7 ft.
Tonight
SSW wind around 15 kt. A chance of showers, mainly before 10pm. Seas 5 to 6 ft.
Monday
SSW wind 5 to 10 kt becoming SSE in the afternoon. A slight chance of rain before 10am, then a chance for sprinkles before ending. Seas 3 to 4 ft.
Monday Night
ENE wind 5 to 10 kt. A chance of rain after 7pm. Seas around 3 ft.
Tuesday
ENE wind around 10 kt. A chance of rain. Seas 2 to 3 ft.
Tuesday Night
Variable winds 5 kt or less. Rain. Seas 2 to 3 ft.
Wednesday
Variable winds 5 kt or less. Showers. Seas around 3 ft.
Wednesday Night
Variable winds 5 kt or less. Showers. Seas around 3 ft.
Thursday
Variable winds 5 kt or less. Showers. 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: 6:31 am AKDT May 10, 2026
Forecast Valid: 8am AKDT May 10, 2026-6pm AKDT May 16, 2026
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