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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Overnight
Low: 43 °F
E 20kt
4ft
Sunday
High: 46 °F
E 20kt
4-5ft
Sunday Night
Low: 44 °F
ESE 20kt
4ft
Monday
High: 46 °F
⇑SW 10kt
3ft
Monday Night
Low: 43 °F
SW 15kt
3ft
Tuesday
High: 46 °F
WSW 20kt
3-5ft
Tuesday Night
Low: 42 °F
W 20kt
4ft
Wednesday
High: 46 °F
WNW 20kt
3ft
Wednesday Night
Low: 43 °F
WSW 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:58 pm AKDT Jul 4, 2026
Forecast Valid: 11pm AKDT Jul 4, 2026-6pm AKDT Jul 11, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

Synopsis: A 1005 mb low 160 nm south of Kiska moves to 177 nm NE of Shemya at 1007 mb by Mon morning. Its front lifts into the central Bering Sea through Mon.

Overnight

E wind around 20 kt. A slight chance of rain after 4am. Areas of fog. Seas around 4 ft.

Sunday

E wind around 20 kt. Rain likely, mainly after 1pm. Areas of fog. Seas 4 to 5 ft.

Sunday Night

ESE wind 15 to 20 kt. A chance of rain. Areas of fog. Seas around 4 ft.

Monday

Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. A chance of rain before 10am. Areas of fog. Seas around 3 ft.

Monday Night

SW wind around 15 kt. Areas of fog. Seas around 3 ft.

Tuesday

WSW wind 15 to 20 kt. A chance of rain before 10am. Patchy fog before 10am. Seas 3 to 5 ft.

Tuesday Night

W wind around 20 kt. Mostly cloudy. Seas around 4 ft.

Wednesday

WNW wind 15 to 20 kt. Mostly cloudy. Seas around 3 ft.

Wednesday Night

WSW wind 10 to 15 kt. Mostly cloudy. Seas around 3 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.