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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Tuesday
High: 47 °F
N 20kt
7ft
Tuesday Night
Low: 45 °F
N 20kt
6-7ft
Wednesday
High: 47 °F
NNE 15kt
6ft
Wednesday Night
Low: 41 °F
ENE 10kt
4-5ft
Thursday
High: 44 °F
E 10kt
4ft
Thursday Night
Low: 39 °F
E 10kt
3ft
Friday
High: 44 °F
ENE 10kt
2ft
Friday Night
Low: 40 °F
NE 10kt
2ft
Saturday
High: 44 °F
NNE 15kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:14 pm AKDT Jun 1, 2026
Forecast Valid: 1am AKDT Jun 2, 2026-6pm AKDT Jun 8, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A low in the western Gulf pushes its front across Alaska Peninsula and southeastern Bering today and stalls through Tue. The front weakens by Wed morning, as high pressure dominates over the Bering through Thu.

Tuesday

N wind around 20 kt. Partly sunny. Seas 4 ft building to 7 ft.

Tuesday Night

N wind 15 to 20 kt. A slight chance of rain. Seas 6 to 7 ft.

Wednesday

NNE wind 10 to 15 kt. A slight chance of rain. Seas around 6 ft.

Wednesday Night

ENE wind 5 to 10 kt. Mostly cloudy. Seas 4 to 5 ft.

Thursday

E wind 5 to 10 kt. Mostly cloudy. Seas around 4 ft.

Thursday Night

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

Friday

ENE wind around 10 kt. Mostly cloudy. Seas around 2 ft.

Friday Night

NE wind around 10 kt. A chance of showers. Seas around 2 ft.

Saturday

NNE wind around 15 kt. A chance of showers. Seas around 2 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.