For More Weather Information:

Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 36 °F
E 15kt
6-8ft

Small Craft Advisory
Wednesday
High: 38 °F
N 25kt
10ft

Small Craft Advisory
Wednesday Night
Low: 34 °F
N 20kt
7-9ft

Small Craft Advisory
Thursday
High: 35 °F
⇑SSE 10kt
5-6ft
Thursday Night
Low: 33 °F
SE 15kt
3-4ft
Friday
High: 37 °F
E 15kt
3ft
Friday Night
Low: 34 °F
ESE 15kt
2-3ft
Saturday
High: 38 °F
SE 15kt
3ft
Saturday Night
Low: 35 °F
SE 20kt
4-5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:53 pm AKDT Mar 31, 2026
Forecast Valid: 8pm AKDT Mar 31, 2026-6pm AKDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

Synopsis: A 997 mb low 50 nm South of Adak moves to 350 nm Southwest of King Salmon at 999 mb by Thu afternoon. A separate 994 mb Kamchatka low pushes its front into the Western Bering by Thu morning.

Tonight

E wind 10 to 15 kt. Showers. Seas 6 to 8 ft.

Wednesday

N wind 20 to 25 kt, with gusts as high as 30 kt. Rain and snow showers likely before 1pm, then a chance of snow showers. Seas 6 ft building to 10 ft.

Wednesday Night

N wind 10 to 20 kt. Mostly cloudy. Seas 7 to 9 ft.

Thursday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Partly sunny. Seas 5 to 6 ft.

Thursday Night

SE wind 10 to 15 kt. A chance of snow between 10pm and 4am, then rain and snow likely. Seas 3 to 4 ft.

Friday

E wind around 15 kt. Rain and snow likely before 1pm, then a chance of rain after 4pm. Seas around 3 ft.

Friday Night

ESE wind around 15 kt. A chance of rain before 10pm, then rain and snow likely. Seas 2 to 3 ft.

Saturday

SE wind around 15 kt. A chance of rain and snow before 4pm. Seas around 3 ft.

Saturday Night

SE wind around 20 kt. Rain likely. Seas 4 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.