National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:N wind 20 to 25 kt. A slight chance of snow showers before 1am. Widespread freezing spray after 1am. Seas 5 to 6 ft.

      Low: 25 °F

      N 25kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:NNE wind 15 to 20 kt. Widespread freezing spray. Mostly cloudy. Seas 7 to 8 ft.

      High: 27 °F

      NNE 20kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:N wind around 15 kt. Widespread freezing spray. Mostly cloudy. Seas 5 to 6 ft.

      Low: 26 °F

      N 15kt
      5-6ft

    • Saturday

      Saturday:NNE wind around 15 kt. Widespread freezing spray before 1pm. Partly sunny. Seas around 5 ft.

      High: 30 °F

      NNE 15kt
      5ft

    • Saturday Night

      Saturday Night:NNE wind 5 to 10 kt. Mostly cloudy. Seas around 4 ft.

      Low: 28 °F

      NNE 10kt
      4ft

    • Sunday

      Sunday:E wind 5 to 10 kt. Mostly sunny. Seas around 3 ft.

      High: 32 °F

      E 10kt
      3ft

    • Sunday Night

      Sunday Night:E wind around 10 kt. Mostly clear. Seas 2 to 3 ft.

      Low: 32 °F

      E 10kt
      2-3ft

    • Monday

      Monday:ESE wind around 10 kt. Partly sunny. Seas around 3 ft.

      High: 37 °F

      ESE 10kt
      3ft

    • Monday Night

      Monday Night:ESE wind around 10 kt. A chance of snow after 4am. Seas around 4 ft.

      Low: 33 °F

      ESE 10kt
      4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:55 pm AKDT Mar 19, 2026
Forecast Valid: 11pm AKDT Mar 19, 2026-6pm AKDT Mar 26, 2026

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Detailed Forecast


Synopsis: High pressure persists across the region through Sun afternoon.

Overnight
N wind 20 to 25 kt. A slight chance of snow showers before 1am. Widespread freezing spray after 1am. Seas 5 to 6 ft.
Friday
NNE wind 15 to 20 kt. Widespread freezing spray. Mostly cloudy. Seas 7 to 8 ft.
Friday Night
N wind around 15 kt. Widespread freezing spray. Mostly cloudy. Seas 5 to 6 ft.
Saturday
NNE wind around 15 kt. Widespread freezing spray before 1pm. Partly sunny. Seas around 5 ft.
Saturday Night
NNE wind 5 to 10 kt. Mostly cloudy. Seas around 4 ft.
Sunday
E wind 5 to 10 kt. Mostly sunny. Seas around 3 ft.
Sunday Night
E wind around 10 kt. Mostly clear. Seas 2 to 3 ft.
Monday
ESE wind around 10 kt. Partly sunny. Seas around 3 ft.
Monday Night
ESE wind around 10 kt. A chance of snow after 4am. Seas around 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: 52.89°N 173.1°W
Last Update: 8:55 pm AKDT Mar 19, 2026
Forecast Valid: 11pm AKDT Mar 19, 2026-6pm AKDT Mar 26, 2026
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