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Anchorage, AK Local Forecast Office

34NM ESE Seguam Island AK

Marine Point Forecast

[NOTICE]

Thursday
High: 46 °F
SW 15kt
4-5ft
Thursday Night
Low: 44 °F
WSW 15kt
5-6ft
Independence Day
High: 45 °F
WSW 10kt
5-6ft
Friday Night
Low: 44 °F
WSW 10kt
4ft
Saturday
High: 46 °F
Light Wind
4-5ft
Saturday Night
Low: 45 °F
Light Wind
4ft
Sunday
High: 47 °F
Light Wind
3-4ft
Sunday Night
Low: 45 °F
NNW 10kt
3-4ft
Monday
High: 47 °F
N 10kt
3-5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:40 pm AKDT Jul 2, 2025
Forecast Valid: 1am AKDT Jul 3, 2025-6pm AKDT Jul 9, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A 1000 mb low 90 nm S of Cape Newenham moves to 140 nm S of Nunivak Island at 1005 mb Thu morning and dissipates Thu afternoon. A 1000 mb low 90 nm SW of Sitkinak Island remains nearly stationary through Thu evening as it weakens to 1007 mb. This low exits further southeastward into the North Pacific by Fri afternoon. A 997 mb low 300 nm N of Shemya moves to 160 nm N of Adak at 1004 mb Fri afternoon.

Thursday

SW wind 10 to 15 kt becoming S in the afternoon. Showers likely, mainly between 7am and 4pm. Seas 4 to 5 ft.

Thursday Night

WSW wind 10 to 15 kt. A chance of showers, mainly after 1am. Seas 5 to 6 ft.

Independence Day

WSW wind around 10 kt. A chance of showers. Seas 5 to 6 ft.

Friday Night

WSW wind 5 to 10 kt. A chance of showers before 4am. Seas around 4 ft.

Saturday

Variable winds 5 kt or less. Mostly cloudy. Seas 4 to 5 ft.

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 4 ft.

Sunday

Variable winds 5 kt or less. Partly sunny. Seas 3 to 4 ft.

Sunday Night

NNW wind 5 to 10 kt. Mostly cloudy. Seas 3 to 4 ft.

Monday

N wind around 10 kt. A chance of showers. Seas 3 to 5 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.