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Juneau, AK Local Forecast Office

Biorka Island AK

Marine Point Forecast

[NOTICE]
    • Columbus Day

      Columbus Day:Variable winds 5 kt or less. Mostly sunny. Seas around 4 ft.

      High: 52 °F

      Light Wind
      4ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Partly cloudy. Seas around 5 ft.

      Low: 44 °F

      Light Wind
      5ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Partly sunny. Seas 4 to 5 ft.

      High: 51 °F

      Light Wind
      4-5ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of showers after 10pm.   Seas around 4 ft.

      Low: 47 °F

      Light Wind
      4ft

    • Wednesday

      Wednesday:SE wind 5 to 10 kt. A chance of showers before 10am.   Seas around 4 ft.

      High: 53 °F

      SE 10kt
      4ft

    • Wednesday Night

      Wednesday Night:E wind 10 to 20 kt. Rain after 10pm.   Seas 4 to 5 ft.

      Low: 49 °F

      E 20kt
      4-5ft

    • Thursday

      Thursday:ESE wind 25 to 30 kt, with gusts as high as 35 kt. Rain. The rain could be heavy at times.   Seas 5 to 7 ft.

      High: 55 °F

      ESE 30kt
      5-7ft

    • Thursday Night

      Thursday Night:SSE wind 20 to 25 kt decreasing to 10 to 15 kt in the evening. Rain. The rain could be heavy at times.   Seas 8 to 9 ft.

      Low: 49 °F

      SSE 25kt⇓
      8-9ft

    • Friday

      Friday:S wind around 10 kt. Showers.   Seas around 7 ft.

      High: 53 °F

      S 10kt
      7ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:41 pm AKDT Oct 12, 2026
Forecast Valid: 4pm AKDT Oct 12, 2026-6pm AKDT Oct 18, 2026

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Detailed Forecast


Synopsis: Onshore flow prevails bringing light showers and possible erratic gusts. Winds along southern ocean entrances and Cape St. Elias increase Tuesday as a northward moving low clips the southern panhandle. By early Thursday, a strong gale force low will impact the Gulf.

Columbus Day
Variable winds 5 kt or less. Mostly sunny. Seas around 4 ft.
Tonight
Variable winds 5 kt or less. Partly cloudy. Seas around 5 ft.
Tuesday
Variable winds 5 kt or less. Partly sunny. Seas 4 to 5 ft.
Tuesday Night
Variable winds 5 kt or less. A chance of showers after 10pm. Seas around 4 ft.
Wednesday
SE wind 5 to 10 kt. A chance of showers before 10am. Seas around 4 ft.
Wednesday Night
E wind 10 to 20 kt. Rain after 10pm. Seas 4 to 5 ft.
Thursday
ESE wind 25 to 30 kt, with gusts as high as 35 kt. Rain. The rain could be heavy at times. Seas 5 to 7 ft.
Thursday Night
SSE wind 20 to 25 kt decreasing to 10 to 15 kt in the evening. Rain. The rain could be heavy at times. Seas 8 to 9 ft.
Friday
S wind around 10 kt. Showers. Seas around 7 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: 56.85°N 135.53°W
Last Update: 2:41 pm AKDT Oct 12, 2026
Forecast Valid: 4pm AKDT Oct 12, 2026-6pm AKDT Oct 18, 2026
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