For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 38 °F
Light Wind
3ft
Tonight
Low: 35 °F
E 15kt
3ft
Tuesday
High: 39 °F
⇑E 35kt
9ft

Gale Warning
Tuesday Night
Low: 36 °F
SE 15kt
5-7ft
Wednesday
High: 40 °F
N 20kt
5ft
Wednesday Night
Low: 34 °F
N 25kt
7-8ft
Thursday
High: 37 °F
N 15kt
5-7ft
Thursday Night
Low: 33 °F
S 10kt
4ft
Friday
High: 38 °F
SSE 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: 3:49 pm AKDT Mar 30, 2026
Forecast Valid: 5pm AKDT Mar 30, 2026-6pm AKDT Apr 6, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING TUESDAY...

Synopsis: A 1004 mb low 230 nm S of Amchitka Island moves 100 nm SE of Adak at 998 mb by Tue afternoon. This system will progress eastward 115 nm S of Unalaska at 997 mb by Wed afternoon.

This Afternoon

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

Tonight

NE wind 10 to 15 kt becoming E after midnight. A slight chance of snow after 4am. Seas around 3 ft.

Tuesday

E wind 25 to 30 kt increasing to 30 to 35 kt in the afternoon. Winds could gust as high as 45 kt. Rain and snow, becoming all rain after 1pm. Seas 4 ft building to 9 ft.

Tuesday Night

SE wind 10 to 15 kt becoming E after midnight. Rain. Seas 5 to 7 ft.

Wednesday

N wind 15 to 20 kt. Rain showers likely before 1pm, then a chance of rain and snow showers. Seas around 5 ft.

Wednesday Night

N wind 20 to 25 kt. Cloudy. Seas 7 to 8 ft.

Thursday

N wind 10 to 15 kt. A chance of rain and snow after 4pm. Seas 5 to 7 ft.

Thursday Night

N wind 5 to 10 kt becoming S in the evening. Rain and snow likely, becoming all rain after 4am. Seas around 4 ft.

Friday

SSE wind around 10 kt. Rain likely. 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.