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]

    • This Afternoon

      This Afternoon:E wind around 20 kt. A slight chance of rain. Seas around 5 ft.

      High: 46 °F

      E 20kt
      5ft

    • Tonight

      Tonight:ESE wind 15 to 20 kt. Rain. Seas 4 to 5 ft.

      Low: 42 °F

      ESE 20kt
      4-5ft

    • Wednesday

      Wednesday:E wind 15 to 20 kt. Rain likely, mainly before 7am. Seas around 6 ft.

      High: 47 °F

      E 20kt
      6ft

    • Wednesday Night

      Wednesday Night:WSW wind 10 to 20 kt. Areas of fog after 10pm. Seas 5 to 6 ft.

      Low: 42 °F

      WSW 20kt
      5-6ft

    • Thursday

      Thursday:SSW wind 20 to 25 kt. Areas of fog before 10am. Seas around 5 ft.

      High: 46 °F

      SSW 25kt
      5ft

    • Thursday Night

      Thursday Night:SSW wind around 20 kt. A chance of rain before 10pm, then a chance of rain after 1am. Seas 5 to 6 ft.

      Low: 42 °F

      SSW 20kt
      5-6ft

    • Friday

      Friday:SSW wind around 20 kt. A chance of rain. Seas around 6 ft.

      High: 45 °F

      SSW 20kt
      6ft

    • Friday Night

      Friday Night:WSW wind around 20 kt. Showers. Seas around 6 ft.

      Low: 41 °F

      WSW 20kt
      6ft

    • Saturday

      Saturday:WSW wind 15 to 20 kt. Showers. Seas around 6 ft.

      High: 45 °F

      WSW 20kt
      6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:28 pm AKDT Jun 23, 2026
Forecast Valid: 2pm AKDT Jun 23, 2026-6pm AKDT Jun 29, 2026

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Detailed Forecast


Synopsis: A front from a North Pacific low progresses eastward. Its low reaches 240 nm S of Adak Tue night at 997 mb before reaching 200 nm N of Adak Thu morning.

This Afternoon
E wind around 20 kt. A slight chance of rain. Seas around 5 ft.
Tonight
ESE wind 15 to 20 kt. Rain. Seas 4 to 5 ft.
Wednesday
E wind 15 to 20 kt. Rain likely, mainly before 7am. Seas around 6 ft.
Wednesday Night
WSW wind 10 to 20 kt. Areas of fog after 10pm. Seas 5 to 6 ft.
Thursday
SSW wind 20 to 25 kt. Areas of fog before 10am. Seas around 5 ft.
Thursday Night
SSW wind around 20 kt. A chance of rain before 10pm, then a chance of rain after 1am. Seas 5 to 6 ft.
Friday
SSW wind around 20 kt. A chance of rain. Seas around 6 ft.
Friday Night
WSW wind around 20 kt. Showers. Seas around 6 ft.
Saturday
WSW wind 15 to 20 kt. Showers. Seas around 6 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: 1:28 pm AKDT Jun 23, 2026
Forecast Valid: 2pm AKDT Jun 23, 2026-6pm AKDT Jun 29, 2026
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