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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Today
High: 46 °F
ESE 20kt
3ft
Tonight
Low: 44 °F
ESE 20kt
5ft
Friday
High: 46 °F
NW 15kt
4ft
Friday Night
Low: 43 °F
NW 10kt
3-4ft
Saturday
High: 46 °F
WSW 20kt
3-5ft
Saturday Night
Low: 43 °F
WSW 20kt
6-7ft
Sunday
High: 46 °F
WSW 15kt
5-6ft
Sunday Night
Low: 44 °F
SW 10kt
3-4ft
Monday
High: 47 °F
S 10kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:04 am AKDT Jul 9, 2026
Forecast Valid: 11am AKDT Jul 9, 2026-6pm AKDT Jul 15, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TODAY...

Synopsis: A 1011 mb low arrives 160 nm S of Amchitka by Thu afternoon and moves to 70 nm E of St. George at 1008 mb by Fri afternoon. By Sat, the low tracks to 30 nm S of Togiak at 1005 mb before pushing inland.

Today

ESE wind 15 to 20 kt. Showers, with thunderstorms also possible after 4pm. Patchy fog. Seas around 3 ft.

Tonight

ESE wind 15 to 20 kt becoming SSW after midnight. Showers and possibly a thunderstorm before 10pm, then a chance of rain between 10pm and 4am, then a chance of showers after 4am. Patchy fog before 1am. Seas around 5 ft.

Friday

NW wind 10 to 15 kt. A chance of showers, mainly before 7am. Seas around 4 ft.

Friday Night

NW wind around 10 kt becoming WSW after midnight. Mostly cloudy. Seas 3 to 4 ft.

Saturday

WSW wind 10 to 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 3 to 5 ft.

Saturday Night

WSW wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 6 to 7 ft.

Sunday

WSW wind around 15 kt, with gusts as high as 20 kt. Cloudy. Seas 5 to 6 ft.

Sunday Night

SW wind 5 to 10 kt. Showers likely. Seas 3 to 4 ft.

Monday

S wind around 10 kt. Showers likely. 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.