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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 50 °F
Light Wind
3ft
Tonight
Low: 42 °F
Light Wind
3ft
Saturday
High: 48 °F
Light Wind
2-3ft
Saturday Night
Low: 44 °F
Light Wind
2-3ft
Sunday
High: 49 °F
ESE 10kt
4-6ft
Sunday Night
Low: 46 °F
SE 10kt
5-6ft
Columbus Day
High: 49 °F
Light Wind
4ft
Monday Night
Low: 46 °F
Light Wind
4ft
Tuesday
High: 48 °F
Light Wind
4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:52 pm AKDT Oct 9, 2026
Forecast Valid: 4pm AKDT Oct 9, 2026-6pm AKDT Oct 15, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Northerly winds are diminishing and will continue to diminish through the evening. Winds relax overnight Friday into Saturday, with a gale force front moving in Saturday night. Widespread 25-35 knots along the outside waters and up to 25 knots for the inside waters will accompany this system on Sunday. Outlook: a stronger system moves in mid to late next week.

This Afternoon

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

Tonight

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

Saturday

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

Saturday Night

Variable winds 5 kt or less. A chance of rain after 1am. Seas 2 to 3 ft.

Sunday

ESE wind 5 to 10 kt. Rain. Seas 4 to 6 ft.

Sunday Night

SE wind around 10 kt becoming WSW after midnight. Rain. Seas 5 to 6 ft.

Columbus Day

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

Monday Night

Variable winds 5 kt or less. Rain likely. Seas around 4 ft.

Tuesday

Variable winds 5 kt or less. Rain. Seas around 4 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.