For More Weather Information:

Anchorage, AK Local Forecast Office

3NM S Chiswell Islands AK

Marine Point Forecast

[NOTICE]

Today
High: 45 °F
N 10kt
7-9ft

Small Craft Advisory
Tonight
Low: 41 °F
NNE 10kt
6-8ft

Small Craft Advisory
Saturday
High: 43 °F
ESE 10kt
6ft
Saturday Night
Low: 39 °F
ESE 10kt
5-6ft
Sunday
High: 40 °F
E 10kt
5-6ft
Sunday Night
Low: 39 °F
⇑NE 20kt
4-6ft
Monday
High: 42 °F
⇑N 35kt
4-5ft
Monday Night
Low: 40 °F
NE 35kt
16ft
Tuesday
High: 43 °F
ENE 25kt⇓
16ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:43 am AKST Nov 6, 2026
Forecast Valid: 7am AKST Nov 6, 2026-6pm AKST Nov 12, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

Synopsis: A 969 mb low 180 nm SE of Middleton Island moves to 50 nm SE of Seward at 986 mb Sat morning. This low then moves to 70 nm SE of Kodiak City at 991 mb Sun morning. A 970 mb N Pacific low moves to 50 nm SW of Graham Island at 980 mb Sun morning. Its front moves along the N Gulf Coast through Sun morning.

Today

N wind 5 to 10 kt. Mostly cloudy. Seas 7 to 9 ft.

Tonight

NNE wind 5 to 10 kt. A chance of showers after 3am. Seas 6 to 8 ft.

Saturday

NE wind around 10 kt becoming ESE in the afternoon. Showers likely, mainly after 3pm. Seas 6 ft subsiding to 3 ft.

Saturday Night

ESE wind 5 to 10 kt becoming NNE after midnight. Showers likely, mainly before 9pm. Seas 5 to 6 ft.

Sunday

NNW wind 5 to 10 kt becoming E in the afternoon. Scattered showers after 3pm. Seas 5 to 6 ft.

Sunday Night

E wind 10 to 15 kt becoming NE 15 to 20 kt after midnight. Winds could gust as high as 25 kt. Showers likely. Seas 4 to 6 ft.

Monday

N wind 20 to 25 kt increasing to 30 to 35 kt in the afternoon. Winds could gust as high as 40 kt. Rain likely. Seas 4 to 5 ft.

Monday Night

NE wind 25 to 35 kt, with gusts as high as 40 kt. Rain likely. Seas 5 ft building to 16 ft.

Tuesday

ENE wind 20 to 25 kt becoming ESE 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Rain likely. Seas 16 ft subsiding to 11 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.