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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 46 °F
NE 10kt
3ft
Tonight
Low: 38 °F
Light Wind
2ft
Thursday
High: 43 °F
Light Wind
2ft
Thursday Night
Low: 38 °F
Light Wind
2ft
Friday
High: 44 °F
Light Wind
1-2ft
Friday Night
Low: 40 °F
E 10kt
5ft
Saturday
High: 43 °F
E 10kt
5ft
Saturday Night
Low: 40 °F
ENE 15kt
5-6ft
Sunday
High: 44 °F
ENE 15kt
7ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:51 am AKDT Oct 28, 2026
Forecast Valid: 1pm AKDT Oct 28, 2026-6pm AKST Nov 3, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A ridge of high pressure builds in the Gulf of Alaska while NW'ly outflow winds and seas decrease through Wednesday. Benign conditions persist through the end of the week.

This Afternoon

NE wind around 10 kt. Sunny. Seas around 3 ft.

Tonight

Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

Thursday

Variable winds 5 kt or less. Sunny. Seas around 2 ft.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas 1 to 2 ft.

Friday Night

E wind 5 to 10 kt. A chance of rain after 1am. Seas 2 ft building to 5 ft.

Saturday

E wind around 10 kt. Rain likely. Seas around 5 ft.

Saturday Night

ENE wind 10 to 15 kt. Rain. Seas 5 to 6 ft.

Sunday

ENE wind around 15 kt. Rain. Seas around 7 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.