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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Sunday
High: 44 °F
WSW 20kt
4-5ft
Sunday Night
Low: 43 °F
SSE 10kt
2-3ft
Monday
High: 47 °F
ESE 25kt
3ft
Monday Night
Low: 42 °F
S 25kt
5-6ft
Tuesday
High: 46 °F
SSW 25kt
5-6ft
Tuesday Night
Low: 44 °F
SSW 25kt
6-8ft
Wednesday
High: 45 °F
SSW 25kt
6-7ft
Wednesday Night
Low: 42 °F
WSW 25kt
5ft
Thursday
High: 45 °F
WNW 20kt
3-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:53 pm AKDT Jun 27, 2026
Forecast Valid: 2am AKDT Jun 28, 2026-6pm AKDT Jul 4, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY MONDAY...

Synopsis: A 1011 mb low 100 nm N of Saint Paul moves to 80 nm W of Mekoryuk at 1013 mb Sunday afternoon, then dissipates as it moves inland. A 985 mb North Pacific low moves to 130 nm SW of Shemya at 993 mb by Tuesday morning. Its front moves through the Western Aleutians Sun afternoon and sweeps across the Bering Sea through Tue morning.

Sunday

WSW wind 10 to 20 kt. A slight chance of rain before 7am. Patchy fog before 7am. Seas 4 to 5 ft.

Sunday Night

SSE wind 5 to 10 kt. Mostly cloudy. Seas 2 to 3 ft.

Monday

S wind 15 to 25 kt becoming ESE in the afternoon. Rain, mainly after 10am. Seas around 3 ft.

Monday Night

S wind around 25 kt. Rain, mainly before 4am. Seas 5 to 6 ft.

Tuesday

SSW wind 20 to 25 kt. A chance of rain before 10am. Seas 5 to 6 ft.

Tuesday Night

SSW wind around 25 kt, with gusts as high as 35 kt. A chance of rain after 1am. Seas 6 to 8 ft.

Wednesday

SSW wind around 25 kt, with gusts as high as 35 kt. Showers likely, mainly before 4pm. Seas 6 to 7 ft.

Wednesday Night

WSW wind around 25 kt, with gusts as high as 30 kt. Showers likely. Seas around 5 ft.

Thursday

WNW wind around 20 kt, with gusts as high as 25 kt. A chance of showers. Seas 3 to 4 ft.

*Notices:

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.
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.