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]

    • This Afternoon

      This Afternoon:NE wind around 20 kt. Rain likely. Seas around 7 ft.

      High: 39 °F

      NE 20kt
      7ft

    • Tonight

      Tonight:N wind 10 to 15 kt. Rain likely. Seas around 6 ft.

      Low: 36 °F

      N 15kt
      6ft

    • Friday

      Friday:NNW wind 15 to 20 kt. Rain and snow showers. Seas around 5 ft.

      High: 38 °F

      NNW 20kt
      5ft

    • Friday Night

      Friday Night:NW wind 25 to 30 kt. Rain and snow showers, mainly before 10pm. Seas 7 ft building to 10 ft.

      Low: 37 °F

      NW 30kt
      Waves Building10ft

    • Saturday

      Saturday:NNW wind around 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 12 to 13 ft.

      High: 39 °F

      NNW 25kt
      12-13ft

    • Saturday Night

      Saturday Night:NNW wind 15 to 20 kt. Mostly cloudy. Seas 8 to 10 ft.

      Low: 37 °F

      NNW 20kt
      8-10ft

    • Sunday

      Sunday:NNW wind 5 to 10 kt. Cloudy. Seas 6 to 8 ft.

      High: 39 °F

      NNW 10kt
      6-8ft

    • Sunday Night

      Sunday Night:ESE wind 10 to 20 kt. A chance of rain. Seas 4 to 5 ft.

      Low: 36 °F

      ESE 20kt
      4-5ft

    • Monday

      Monday:E wind around 25 kt. A chance of rain. Seas around 3 ft.

      High: 40 °F

      E 25kt
      3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:49 am AKDT Apr 30, 2026
Forecast Valid: 12pm AKDT Apr 30, 2026-6pm AKDT May 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

Synopsis: A 987 mb low 75 nm S of Atka lifts to 140 nm W of Unalaska at 982 mb Fri morning. It's front projects northeast across the eastern Bering. The low then drifts to 45 nm SW of Unalaska at 993 mb by Sat morning.

This Afternoon
NE wind around 20 kt. Rain likely. Seas around 7 ft.
Tonight
N wind 10 to 15 kt. Rain likely. Seas around 6 ft.
Friday
NNW wind 15 to 20 kt. Rain and snow showers. Seas around 5 ft.
Friday Night
NW wind 25 to 30 kt. Rain and snow showers, mainly before 10pm. Seas 7 ft building to 10 ft.
Saturday
NNW wind around 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 12 to 13 ft.
Saturday Night
NNW wind 15 to 20 kt. Mostly cloudy. Seas 8 to 10 ft.
Sunday
NNW wind 5 to 10 kt. Cloudy. Seas 6 to 8 ft.
Sunday Night
ESE wind 10 to 20 kt. A chance of rain. Seas 4 to 5 ft.
Monday
E wind around 25 kt. A chance of rain. 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: 52.89°N 173.1°W
Last Update: 7:49 am AKDT Apr 30, 2026
Forecast Valid: 12pm AKDT Apr 30, 2026-6pm AKDT May 6, 2026
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