For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Sunday
High: 46 °F
ESE 25kt
4-5ft

Small Craft Advisory
Sunday Night
Low: 44 °F
ESE 20kt
4ft
Monday
High: 48 °F
WSW 10kt
3ft
Monday Night
Low: 43 °F
WSW 20kt
3ft
Tuesday
High: 48 °F
WSW 20kt
4ft
Tuesday Night
Low: 42 °F
WNW 15kt
3-4ft
Wednesday
High: 46 °F
WNW 15kt
3ft
Wednesday Night
Low: 43 °F
WSW 15kt
3ft
Thursday
High: 46 °F
SE 10kt
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:56 am AKDT Jul 5, 2026
Forecast Valid: 4am AKDT Jul 5, 2026-6pm AKDT Jul 11, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TODAY...

Synopsis: A 1008 mb low 130 nm SW of Amchitka moves to 70 nm NE of Shemya at 1008 mb by Mon morning and continues to 30 nm W of St. George at 1004 mb by Tue morning.

Sunday

ESE wind 15 to 25 kt. Rain likely, mainly between 1pm and 4pm. Areas of fog. Seas 4 to 5 ft.

Sunday Night

ESE wind 15 to 20 kt. Rain likely, mainly after 10pm. Areas of fog. Seas around 4 ft.

Monday

E wind 5 to 10 kt becoming WSW in the afternoon. A chance of rain, mainly before 10am. Areas of fog. Seas around 3 ft.

Monday Night

WSW wind 10 to 20 kt. Areas of fog. Seas around 3 ft.

Tuesday

WSW wind around 20 kt. Patchy fog before 10am. Seas around 4 ft.

Tuesday Night

WNW wind around 15 kt. Mostly cloudy. Seas 3 to 4 ft.

Wednesday

WNW wind around 15 kt. Mostly cloudy. Seas around 3 ft.

Wednesday Night

WSW wind 10 to 15 kt. Mostly cloudy. Seas around 3 ft.

Thursday

SE wind around 10 kt. Cloudy. Seas 2 to 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.