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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind around 15 kt. A slight chance of showers after 4pm.   Seas 4 to 5 ft.

      High: 47 °F

      SW 15kt
      4-5ft

    • Tonight

      Tonight:S wind 5 to 10 kt. Showers likely, mainly after 1am. The rain could be heavy at times.   Seas 3 to 4 ft.

      Low: 44 °F

      S 10kt
      3-4ft

    • Monday

      Monday:Variable winds 5 kt or less. Showers. The rain could be heavy at times.   Seas around 3 ft.

      High: 48 °F

      Light Wind
      3ft

    • Monday Night

      Monday Night:WSW wind 15 to 20 kt. Showers likely before 7pm, then a chance of rain between 7pm and 1am, then a chance of showers after 1am.   Seas around 4 ft.

      Low: 44 °F

      WSW 20kt
      4ft

    • Tuesday

      Tuesday:WSW wind 15 to 20 kt. Scattered showers.   Seas around 4 ft.

      High: 46 °F

      WSW 20kt
      4ft

    • Tuesday Night

      Tuesday Night:WSW wind around 10 kt. Rain likely, mainly between 7pm and 10pm.   Seas around 3 ft.

      Low: 44 °F

      WSW 10kt
      3ft

    • Wednesday

      Wednesday:W wind around 10 kt becoming NNW in the morning. A chance of showers before 4pm.   Seas 2 to 3 ft.

      High: 46 °F

      W 10kt
      2-3ft

    • Wednesday Night

      Wednesday Night:NW wind around 10 kt. Mostly cloudy. Seas around 2 ft.

      Low: 44 °F

      NW 10kt
      2ft

    • Thursday

      Thursday:W wind around 10 kt. Cloudy. Seas around 2 ft.

      High: 47 °F

      W 10kt
      2ft


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 am AKDT Jul 12, 2026
Forecast Valid: 5am AKDT Jul 12, 2026-6pm AKDT Jul 18, 2026

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Detailed Forecast


Synopsis: A 1007 mb low 340 nm NW of Amchitka moves to 110 nm NW of Atka by Monday morning. A 1006 mb N Pacific low moves to 110 nm NE of Atka by Monday morning and merges with the first low. This new low moves to 50 nm W of Goodnews Bay at 1000 mb by Tuesday morning.

Today
SW wind around 15 kt. A slight chance of showers after 4pm. Seas 4 to 5 ft.
Tonight
S wind 5 to 10 kt. Showers likely, mainly after 1am. The rain could be heavy at times. Seas 3 to 4 ft.
Monday
Variable winds 5 kt or less. Showers. The rain could be heavy at times. Seas around 3 ft.
Monday Night
WSW wind 15 to 20 kt. Showers likely before 7pm, then a chance of rain between 7pm and 1am, then a chance of showers after 1am. Seas around 4 ft.
Tuesday
WSW wind 15 to 20 kt. Scattered showers. Seas around 4 ft.
Tuesday Night
WSW wind around 10 kt. Rain likely, mainly between 7pm and 10pm. Seas around 3 ft.
Wednesday
W wind around 10 kt becoming NNW in the morning. A chance of showers before 4pm. Seas 2 to 3 ft.
Wednesday Night
NW wind around 10 kt. Mostly cloudy. Seas around 2 ft.
Thursday
W wind around 10 kt. Cloudy. Seas around 2 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 am AKDT Jul 12, 2026
Forecast Valid: 5am AKDT Jul 12, 2026-6pm AKDT Jul 18, 2026
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