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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Thursday
High: 49 °F
Light Wind
3ft
Thursday Night
Low: 44 °F
Light Wind
2-3ft
Friday
High: 50 °F
NNE 10kt
3ft
Friday Night
Low: 42 °F
Light Wind
3ft
Saturday
High: 48 °F
Light Wind
3ft
Saturday Night
Low: 44 °F
Light Wind
3ft
Sunday
High: 48 °F
ESE 10kt
4-6ft
Sunday Night
Low: 45 °F
E 15kt
6ft
Columbus Day
High: 50 °F
ESE 10kt
5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:54 am AKDT Oct 8, 2026
Forecast Valid: 4am AKDT Oct 8, 2026-6pm AKDT Oct 14, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A brief break in winds through Thursday morning punctuated by areas of fog mainly in the central and northern inner channel waters. Northerly winds build across the coasts and inner channels into Friday before relaxing Saturday and shifting southerly.

Thursday

Variable winds 5 kt or less. A chance of showers, mainly before 7am. Seas around 3 ft.

Thursday Night

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

Friday

NNE wind 5 to 10 kt. Sunny. Seas around 3 ft.

Friday Night

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

Saturday

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

Saturday Night

Variable winds 5 kt or less. Rain, mainly after 1am. Seas around 3 ft.

Sunday

ESE wind around 10 kt. Rain. Seas 4 to 6 ft.

Sunday Night

E wind 10 to 15 kt. Rain. Seas around 6 ft.

Columbus Day

ESE wind around 10 kt. Rain. Seas around 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.