For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Today
High: 36 °F
NNW 20kt
7-8ft

Small Craft Advisory
Tonight
Low: 34 °F
NNW 20kt
8-9ft

Small Craft Advisory
Thursday
High: 35 °F
NNW 25kt
9ft

Small Craft Advisory
Thursday Night
Low: 34 °F
WNW 25kt
9-10ft
Friday
High: 35 °F
W 25kt
9-10ft
Friday Night
Low: 35 °F
W 20kt
7-8ft
Saturday
High: 36 °F
SSE 20kt
6-7ft
Saturday Night
Low: 36 °F
⇑SE 30kt
5-6ft
Sunday
High: 40 °F
ESE 30kt⇓
18ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:02 am AKST Feb 4, 2026
Forecast Valid: 5am AKST Feb 4, 2026-6pm AKST Feb 10, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

Synopsis: A 967 mb North Pacific low moves to 70 nm S of Sand Point at 987 mb Thu morning. This low moves to 100 nm SE of Saint Paul at 988 mb Fri morning. A second 996 mb low moves to 200 nm SW of Shemya Thu afternoon and moves to 110 nm SE of Shemya at 1000 mb Fri morning.

Today

NNW wind around 20 kt. Scattered snow showers. Seas 7 to 8 ft.

Tonight

NNW wind around 20 kt. Snow showers likely, mainly after midnight. Seas 8 to 9 ft.

Thursday

NNW wind 20 to 25 kt. Snow showers likely, mainly before noon. Seas around 9 ft.

Thursday Night

WNW wind around 25 kt, with gusts as high as 30 kt. Scattered snow showers. Seas 9 to 10 ft.

Friday

W wind 20 to 25 kt, with gusts as high as 30 kt. Scattered snow showers between 9am and noon. Seas 9 to 10 ft.

Friday Night

W wind 15 to 20 kt. Scattered snow showers between 9pm and 3am. Seas 7 to 8 ft.

Saturday

W wind 15 to 20 kt becoming SSE in the afternoon. A chance of rain between 9am and 3pm. Seas 6 to 7 ft.

Saturday Night

SE wind 20 to 25 kt increasing to 25 to 30 kt. Rain likely. Seas 5 to 6 ft.

Sunday

ESE wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Rain likely. Seas 5 ft building to 18 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.