For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Friday
High: 57 °F
Light Wind
2-3ft
Friday Night
Low: 52 °F
S 10kt
3ft
Saturday
High: 56 °F
Light Wind
4-5ft
Saturday Night
Low: 51 °F
Light Wind
5ft
Sunday
High: 57 °F
Light Wind
4ft
Sunday Night
Low: 50 °F
Light Wind
4ft
Monday
High: 55 °F
ESE 10kt
3ft
Monday Night
Low: 48 °F
E 15kt
4ft
Tuesday
High: 56 °F
NE 10kt
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: 4:02 am AKDT Aug 28, 2026
Forecast Valid: 4am AKDT Aug 28, 2026-6pm AKDT Sep 3, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A next front is expected to bring fresh to strong breezes across outer and inner waters Friday night and Saturday as it tracks east across Southeast Alaska.

Friday

Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.

Friday Night

S wind around 10 kt. Showers, mainly after 10pm. Seas around 3 ft.

Saturday

Variable winds 5 kt or less. Showers. Seas 4 to 5 ft.

Saturday Night

Variable winds 5 kt or less. Showers. Seas around 5 ft.

Sunday

Variable winds 5 kt or less. A chance of showers. Seas around 4 ft.

Sunday Night

Variable winds 5 kt or less. Showers likely, mainly after 1am. Seas around 4 ft.

Monday

ESE wind 5 to 10 kt. Showers. Seas around 3 ft.

Monday Night

E wind around 15 kt. Showers. Seas around 4 ft.

Tuesday

NE wind around 10 kt. Showers. 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.