For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 56 °F
ENE 10kt
5ft
Tonight
Low: 51 °F
ENE 10kt
5ft
Sunday
High: 57 °F
Light Wind
4-5ft
Sunday Night
Low: 50 °F
SSE 10kt
4ft
Monday
High: 55 °F
S 15kt
4ft
Monday Night
Low: 48 °F
SSW 15kt
4-5ft
Tuesday
High: 58 °F
NE 10kt
5-6ft
Tuesday Night
Low: 50 °F
N 10kt
3-4ft
Wednesday
High: 58 °F
Light Wind
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:14 pm AKDT Aug 29, 2026
Forecast Valid: 5pm AKDT Aug 29, 2026-6pm AKDT Sep 5, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A front is expected to bring fresh to strong breezes across the outer and inner waters through Saturday evening as it tracks east across Southeast Alaska. A weak low near Prince William Sound will move SE to just off Baranof Island by Sunday. A new front will move into the panhandle on Monday from the W.

This Afternoon

ENE wind around 10 kt. Showers. Seas around 5 ft.

Tonight

ENE wind 5 to 10 kt. Showers, mainly before 10pm. Seas around 5 ft.

Sunday

Variable winds 5 kt or less. A chance of showers, mainly before 10am. Seas 4 to 5 ft.

Sunday Night

E wind 5 to 10 kt becoming S in the evening. Showers, mainly after 4am. Seas around 4 ft.

Monday

S wind 10 to 15 kt. Showers. The rain could be heavy at times. Seas around 4 ft.

Monday Night

SSW wind 5 to 15 kt becoming ENE after midnight. Showers. The rain could be heavy at times. Seas 4 to 5 ft.

Tuesday

NE wind around 10 kt. Showers likely before 10am. Seas 5 to 6 ft.

Tuesday Night

N wind 5 to 10 kt. Mostly clear. Seas 3 to 4 ft.

Wednesday

Variable winds 5 kt or less. Sunny. Seas around 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.