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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 42 °F
S 20kt
6ft
Tonight
Low: 38 °F
S 20kt
4-6ft
Saturday
High: 42 °F
SW 15kt
3ft
Saturday Night
Low: 36 °F
WSW 10kt
3ft
Sunday
High: 40 °F
WNW 10kt
3ft
Sunday Night
Low: 35 °F
NW 10kt
3ft
Monday
High: 40 °F
NNE 10kt
3ft
Monday Night
Low: 35 °F
E 10kt
3-4ft
Tuesday
High: 38 °F
ESE 20kt
5-6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:35 pm AKDT Mar 27, 2026
Forecast Valid: 4pm AKDT Mar 27, 2026-6pm AKDT Apr 2, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A 1002 mb low 110 nm NW of Shemya moves to 300 nm W of Saint Paul at 1007 mb Saturday afternoon. The low continues to 135 nm NE of Saint Paul at 1008 mb by Sunday afternoon. Its front pushes across the Bering Sea through Sun morning. A 1008 mb North Pacific low forms 115 nm SE of Sand Point Sun morning and continues into the southern Gulf through Sun afternoon.

This Afternoon

S wind around 20 kt. A chance of rain. Seas around 6 ft.

Tonight

S wind 15 to 20 kt. A chance of rain. Seas 4 to 6 ft.

Saturday

SW wind 10 to 15 kt. A chance of rain after 1pm. Seas around 3 ft.

Saturday Night

WSW wind 5 to 10 kt. A chance of rain before 7pm. Seas around 3 ft.

Sunday

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

Sunday Night

NW wind around 10 kt. Mostly cloudy. Seas around 3 ft.

Monday

NNE wind around 10 kt. Mostly cloudy. Seas around 3 ft.

Monday Night

NE wind around 10 kt becoming E in the evening. Cloudy. Seas 3 to 4 ft.

Tuesday

ESE wind 15 to 20 kt. Rain likely. Seas 5 to 6 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.