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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Today
High: 40 °F
WSW 15kt
4ft
Tonight
Low: 38 °F
WSW 15kt
5-6ft
Tuesday
High: 39 °F
WNW 20kt
6ft
Tuesday Night
Low: 36 °F
NNW 20kt
7ft
Wednesday
High: 39 °F
NNW 15kt
7ft
Wednesday Night
Low: 37 °F
S 25kt
5-6ft
Thursday
High: 41 °F
SSW 25kt
6ft
Thursday Night
Low: 37 °F
W 15kt
5-6ft
Friday
High: 41 °F
WNW 15kt
6-7ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:57 am AKDT Apr 6, 2026
Forecast Valid: 5am AKDT Apr 6, 2026-6pm AKDT Apr 12, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

Synopsis: A 990 mb low 110 nm NE of Shemya moves to 170 nm NW of Nikolski at 995 mb Tue morning as its front pushes across the Central and Eastern Aleutians. The low then moves inland 60 nm SW of Goodnews Bay at 1012 mb Wed morning.

Today

W wind around 15 kt becoming SSW in the afternoon. Showers likely, mainly after 1pm. Seas around 4 ft.

Tonight

WSW wind around 15 kt. Showers likely, mainly before 1am. Seas 5 to 6 ft.

Tuesday

WNW wind 15 to 20 kt. Scattered showers, mainly before 1pm. Seas around 6 ft.

Tuesday Night

NNW wind 15 to 20 kt. Mostly cloudy. Seas around 7 ft.

Wednesday

NNW wind 5 to 15 kt becoming W in the afternoon. Mostly cloudy. Seas around 7 ft.

Wednesday Night

S wind 15 to 25 kt. Rain likely, mainly after 4am. Seas 5 to 6 ft.

Thursday

SSW wind 20 to 25 kt, with gusts as high as 30 kt. Rain. Seas around 6 ft.

Thursday Night

W wind 10 to 15 kt. Rain. Seas 5 to 6 ft.

Friday

WNW wind 10 to 15 kt becoming SW in the morning. A chance of rain. Seas 6 to 7 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.