For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 38 °F
E 15kt
5-6ft
Friday
High: 40 °F
ENE 10kt
4ft
Friday Night
Low: 37 °F
E 10kt
4ft
Saturday
High: 38 °F
N 15kt
3-4ft
Saturday Night
Low: 37 °F
Light Wind
3ft
Sunday
High: 40 °F
SE 25kt
3-5ft
Sunday Night
Low: 38 °F
SE 25kt
5-6ft
Monday
High: 41 °F
SW 25kt
5ft
Monday Night
Low: 38 °F
SSW 25kt
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: 2:52 pm AKDT May 7, 2026
Forecast Valid: 8pm AKDT May 7, 2026-6pm AKDT May 14, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A 1007 mb low develops Fri morning near 140 nm northwest of Adak and remains nearly stationary before dissipating through Sat afternoon.

Tonight

E wind around 15 kt, with gusts as high as 20 kt. A chance of rain. Seas 5 to 6 ft.

Friday

ENE wind around 10 kt. A chance of rain. Seas around 4 ft.

Friday Night

E wind around 10 kt. Scattered showers before 10pm, then a chance of rain between 10pm and 4am, then scattered showers after 4am. Seas around 4 ft.

Saturday

N wind 10 to 15 kt. Scattered showers before 7am. Seas 3 to 4 ft.

Saturday Night

Variable winds 5 kt or less. A chance of rain after 4am. Seas around 3 ft.

Sunday

SE wind 15 to 25 kt. Rain, mainly after 10am. Seas 3 to 5 ft.

Sunday Night

SE wind around 25 kt becoming WSW in the evening. Showers. Seas 5 to 6 ft.

Monday

SW wind 20 to 25 kt. Showers. Seas around 5 ft.

Monday Night

SSW wind around 25 kt. Showers. 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.