For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 50 °F
Light Wind
4ft
Monday
High: 56 °F
S 15kt
4ft
Monday Night
Low: 49 °F
S 15kt
5ft
Tuesday
High: 57 °F
NNE 15kt
5-6ft

Small Craft Advisory
Tuesday Night
Low: 49 °F
Light Wind
4ft
Wednesday
High: 58 °F
Light Wind
3ft
Wednesday Night
Low: 50 °F
Light Wind
3ft
Thursday
High: 59 °F
Light Wind
3ft
Thursday Night
Low: 51 °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: 3:23 pm AKDT Aug 30, 2026
Forecast Valid: 7pm AKDT Aug 30, 2026-6pm AKDT Sep 6, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A stronger low will develop in the northern gulf Sunday night and slide down the coastline to Haida Gwaii through Tuesday morning. Widespread fresh breezes to near gales will accompany this system, with wave heights up to 9 ft for the outside waters and up to 14 ft for the offshore waters.

Tonight

Variable winds 5 kt or less. A chance of showers after 1am. Seas around 4 ft.

Monday

SE wind 10 to 15 kt becoming SW in the afternoon. Showers, with thunderstorms also possible after 10am. Seas around 4 ft.

Monday Night

S wind 5 to 15 kt becoming E after midnight. Showers and possibly a thunderstorm. Seas around 5 ft.

Tuesday

NNE wind 5 to 15 kt. Showers likely, mainly before 10am. Seas 5 to 6 ft.

Tuesday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 4 ft.

Wednesday

Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.

Thursday

Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. 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.