For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Today
High: 39 °F
NNW 20kt
6ft
Tonight
Low: 36 °F
N 30kt
10ft

Small Craft Advisory
Saturday
High: 39 °F
N 30kt
10-11ft

Small Craft Advisory
Saturday Night
Low: 36 °F
NNW 20kt
7-9ft
Sunday
High: 38 °F
N 10kt
5-6ft
Sunday Night
Low: 36 °F
E 10kt
3ft
Monday
High: 39 °F
E 20kt
3ft
Monday Night
Low: 36 °F
E 20kt
4-6ft
Tuesday
High: 39 °F
E 20kt
7ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:27 am AKDT May 1, 2026
Forecast Valid: 11am AKDT May 1, 2026-6pm AKDT May 7, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

Synopsis: A 983 mb low 55 nm N of Dutch Harbor moves to 100 nm W of Cape Newenham at 987 mb Fri afternoon before continuing inland. A 999 mb low forms 135 nm E of Atka Fri evening and moves to 200 nm SE of Atka Sat morning before continuing into the North Pacific.

Today

NNW wind 15 to 20 kt. Rain and snow showers, becoming all rain after 1pm. Seas around 6 ft.

Tonight

N wind 25 to 30 kt. Showers likely, mainly before 4am. Seas 7 ft building to 10 ft.

Saturday

N wind 25 to 30 kt. A chance of rain and snow before 10am. Seas 10 to 11 ft.

Saturday Night

NNW wind 15 to 20 kt. Mostly cloudy. Seas 7 to 9 ft.

Sunday

N wind 5 to 10 kt becoming NE in the afternoon. Partly sunny. Seas 5 to 6 ft.

Sunday Night

E wind 5 to 10 kt. Mostly cloudy. Seas around 3 ft.

Monday

E wind 10 to 20 kt. Showers likely after 10am. Seas around 3 ft.

Monday Night

E wind around 20 kt. A chance of showers. Seas 4 to 6 ft.

Tuesday

E wind 15 to 20 kt. A chance of showers. Seas around 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.