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:SSW wind around 20 kt. Mostly sunny. Seas around 10 ft.

      High: 42 °F

      SSW 20kt
      10ft

    • Tonight

      Tonight:S wind 10 to 15 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 7 ft.

      Low: 37 °F

      S 15kt
      7ft

    • Wednesday

      Wednesday:SSE wind 15 to 25 kt. Partly sunny. Seas 5 to 6 ft.

      High: 40 °F

      SSE 25kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:S wind around 20 kt. Mostly cloudy. Seas around 5 ft.

      Low: 38 °F

      S 20kt
      5ft

    • Thursday

      Thursday:SSE wind around 20 kt. Mostly cloudy. Seas 5 to 6 ft.

      High: 40 °F

      SSE 20kt
      5-6ft

    • Thursday Night

      Thursday Night:SSE wind 20 to 25 kt. Mostly cloudy. Seas around 5 ft.

      Low: 37 °F

      SSE 25kt
      5ft

    • Friday

      Friday:SE wind around 25 kt. Mostly cloudy. Seas 5 to 6 ft.

      High: 41 °F

      SE 25kt
      5-6ft

    • Friday Night

      Friday Night:ESE wind around 25 kt. Mostly cloudy. Seas 6 ft building to 10 ft.

      Low: 37 °F

      ESE 25kt
      Waves Building10ft

    • Saturday

      Saturday:E wind around 25 kt. A chance of rain. Seas 9 to 11 ft.

      High: 40 °F

      E 25kt
      9-11ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:36 pm AKST Jan 20, 2026
Forecast Valid: 4pm AKST Jan 20, 2026-6pm AKST Jan 26, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING WEDNESDAY...

Synopsis: A 986 mb low 290 nm N of Shemya continues west and moves inland of the Kamchatka Peninsula through tonight. A 970 mb N Pacific low 260 nm W of Attu Wed morning continues to the Kamchatka Peninsula through Thu morning. Its front moves across the Aleutians tonight through Wed afternoon.

This Afternoon
SSW wind around 20 kt. Mostly sunny. Seas around 10 ft.
Tonight
S wind 10 to 15 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 7 ft.
Wednesday
SSE wind 15 to 25 kt. Partly sunny. Seas 5 to 6 ft.
Wednesday Night
S wind around 20 kt. Mostly cloudy. Seas around 5 ft.
Thursday
SSE wind around 20 kt. Mostly cloudy. Seas 5 to 6 ft.
Thursday Night
SSE wind 20 to 25 kt. Mostly cloudy. Seas around 5 ft.
Friday
SE wind around 25 kt. Mostly cloudy. Seas 5 to 6 ft.
Friday Night
ESE wind around 25 kt. Mostly cloudy. Seas 6 ft building to 10 ft.
Saturday
E wind around 25 kt. A chance of rain. Seas 9 to 11 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: 3:36 pm AKST Jan 20, 2026
Forecast Valid: 4pm AKST Jan 20, 2026-6pm AKST Jan 26, 2026
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