For More Weather Information:

Anchorage, AK Local Forecast Office

33NM NNE Shemya AK

Marine Point Forecast

[NOTICE]

Today
High: 50 °F
W 15kt
5-6ft
Tonight
Low: 46 °F
WNW 20kt
5ft
Tuesday
High: 50 °F
S 15kt
5ft
Tuesday Night
Low: 47 °F
⇑S 45kt
12ft
Wednesday
High: 53 °F
S 40kt
13-15ft
Wednesday Night
Low: 45 °F
W 45kt
15-17ft
Thursday
High: 49 °F
SW 40kt
18-19ft
Thursday Night
Low: 44 °F
SW 40kt
19-20ft
Friday
High: 48 °F
SW 35kt
15-17ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:50 am AKDT Oct 5, 2026
Forecast Valid: 9am AKDT Oct 5, 2026-6pm AKDT Oct 11, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TODAY AND TUESDAY...

Synopsis: A 985 mb low 20 nm W of Akhiok exits into the Western Gulf of Alaska by this afternoon. A front arrives west of Attu by Tue afternoon.

Today

W wind 10 to 15 kt. Isolated showers before 10am. Seas 5 to 6 ft.

Tonight

WNW wind 15 to 20 kt. Mostly clear. Seas around 5 ft.

Tuesday

W wind 10 to 15 kt becoming S in the afternoon. A chance of rain after 4pm. Seas around 5 ft.

Tuesday Night

S wind 30 to 35 kt increasing to 40 to 45 kt after midnight. Winds could gust as high as 50 kt. Rain, mainly after 7pm. The rain could be heavy at times. Seas 6 ft building to 12 ft.

Wednesday

S wind 35 to 40 kt, with gusts as high as 50 kt. Rain. The rain could be heavy at times. Seas 13 to 15 ft.

Wednesday Night

S wind 35 to 45 kt becoming W in the evening. Winds could gust as high as 55 kt. Rain before 10pm, then rain likely after 4am. The rain could be heavy at times. Seas 15 to 17 ft.

Thursday

SW wind around 40 kt, with gusts as high as 55 kt. Rain. Seas 18 to 19 ft.

Thursday Night

SW wind around 40 kt, with gusts as high as 50 kt. Rain. Seas 19 to 20 ft.

Friday

SW wind 30 to 35 kt, with gusts as high as 45 kt. Rain. Seas 15 to 17 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.