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Anchorage, AK Local Forecast Office

20NM SSE Shumagin Islands AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 29 °F
NNE 10kt
2ft
Tonight
Low: 28 °F
N 15kt
2ft
Monday
High: 34 °F
NNE 15kt
3-4ft
Monday Night
Low: 34 °F
N 10kt
4-5ft
Tuesday
High: 36 °F
N 10kt
3-4ft
Tuesday Night
Low: 35 °F
NNW 15kt
3ft
Wednesday
High: 36 °F
NNW 20kt
3-4ft
Wednesday Night
Low: 30 °F
N 25kt
3-4ft
Thursday
High: 36 °F
N 30kt
3-4ft

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 AKST Dec 7, 2025
Forecast Valid: 4pm AKST Dec 7, 2025-6pm AKST Dec 13, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

Synopsis: Strong offshore winds continue in the Eastern Bering due to a 975 mb in the Gulf and high pressure over Northern Alaska and the Bering Strait. A 977 mb low 350 nm S of Atka continues to 520 nm S of Cold Bay at 985 mb Tuesday morning.

This Afternoon

NNE wind around 10 kt. Partly sunny. Seas around 2 ft.

Tonight

N wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 2 ft.

Monday

NNE wind around 15 kt. A slight chance of snow showers after 3pm. Seas 3 to 4 ft.

Monday Night

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

Tuesday

N wind around 10 kt. Sunny. Seas 3 to 4 ft.

Tuesday Night

NNW wind 10 to 15 kt. Mostly clear. Seas around 3 ft.

Wednesday

NNW wind around 20 kt. Sunny. Seas 3 to 4 ft.

Wednesday Night

N wind 20 to 25 kt. Partly cloudy. Seas 3 to 4 ft.

Thursday

N wind 25 to 30 kt. Sunny. Seas 3 to 4 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.