For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Today
High: 56 °F
S 15kt
4ft
Tonight
Low: 48 °F
S 15kt
5ft
Tuesday
High: 58 °F
NNE 15kt
5-6ft

Small Craft Advisory
Tuesday Night
Low: 49 °F
Light Wind
3-4ft
Wednesday
High: 58 °F
Light Wind
3ft
Wednesday Night
Low: 49 °F
Light Wind
3ft
Thursday
High: 59 °F
Light Wind
3ft
Thursday Night
Low: 50 °F
Light Wind
3ft
Friday
High: 56 °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: 3:27 am AKDT Aug 31, 2026
Forecast Valid: 5am AKDT Aug 31, 2026-6pm AKDT Sep 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY LATE TONIGHT THROUGH TUESDAY...

Synopsis: A stronger low will move into the northern gulf by Monday morning and move down the coastline to Haida Gwaii through Tuesday morning. Widespread fresh breezes to near gales and isolated thunderstorms will accompany this system through Tuesday morning, with wave heights up to 9 ft for the outside waters and up to 14 ft for the offshore waters.

Today

E wind 5 to 15 kt becoming SW in the afternoon. Showers, with thunderstorms also possible after 10am. Seas around 4 ft.

Tonight

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 before 10am. Seas 5 to 6 ft.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 3 to 4 ft.

Wednesday

Variable winds 5 kt or less. Sunny. Seas around 3 ft.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Sunny. Seas around 3 ft.

Thursday Night

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

Friday

Variable winds 5 kt or less. Mostly 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.