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

Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

    • Friday

      Friday:SSE wind around 25 kt. Cloudy. Seas 6 to 7 ft.

      High: 40 °F

      SSE 25kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:SSE wind around 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 7 to 8 ft.

      Low: 38 °F

      SSE 25kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:S wind 25 to 30 kt. Partly sunny. Seas 7 to 8 ft.

      High: 40 °F

      S 30kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday Night

      Saturday Night:S wind 20 to 25 kt. Mostly cloudy. Seas 6 to 7 ft.

      Low: 39 °F

      S 25kt
      6-7ft

    • Sunday

      Sunday:SSE wind around 25 kt, with gusts as high as 30 kt. Partly sunny. Seas around 7 ft.

      High: 40 °F

      SSE 25kt
      7ft

    • Sunday Night

      Sunday Night:S wind around 30 kt. Mostly cloudy. Seas around 8 ft.

      Low: 39 °F

      S 30kt
      8ft

    • Monday

      Monday:S wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. A chance of rain after 9am. Seas 6 to 8 ft.

      High: 42 °F

      S 30kt⇓
      6-8ft

    • Monday Night

      Monday Night:SSW wind 10 to 20 kt becoming W in the evening. A chance of rain. Seas 4 to 6 ft.

      Low: 36 °F

      SSW 20kt
      4-6ft

    • Tuesday

      Tuesday:W wind 5 to 10 kt. A chance of rain. Seas 4 to 5 ft.

      High: 39 °F

      W 10kt
      4-5ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:07 am AKST Feb 20, 2026
Forecast Valid: 4am AKST Feb 20, 2026-6pm AKST Feb 26, 2026

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Detailed Forecast

...GALE WARNING TONIGHT AND SATURDAY...

Synopsis: High pressure prevails over the Bering through Sun morning. A front from a 982 mb low in the Western Aleutians slowly moves eastward through Sun morning.

Friday
SSE wind around 25 kt. Cloudy. Seas 6 to 7 ft.
Friday Night
SSE wind around 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 7 to 8 ft.
Saturday
S wind 25 to 30 kt. Partly sunny. Seas 7 to 8 ft.
Saturday Night
S wind 20 to 25 kt. Mostly cloudy. Seas 6 to 7 ft.
Sunday
SSE wind around 25 kt, with gusts as high as 30 kt. Partly sunny. Seas around 7 ft.
Sunday Night
S wind around 30 kt. Mostly cloudy. Seas around 8 ft.
Monday
S wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. A chance of rain after 9am. Seas 6 to 8 ft.
Monday Night
SSW wind 10 to 20 kt becoming W in the evening. A chance of rain. Seas 4 to 6 ft.
Tuesday
W wind 5 to 10 kt. A chance of rain. Seas 4 to 5 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: 4:07 am AKST Feb 20, 2026
Forecast Valid: 4am AKST Feb 20, 2026-6pm AKST Feb 26, 2026
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