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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Overnight
Low: 48 °F
Light Wind
3ft
Wednesday
High: 54 °F
Light Wind
2ft
Wednesday Night
Low: 48 °F
ENE 10kt
2-3ft
Thursday
High: 57 °F
NE 10kt
3-4ft
Thursday Night
Low: 49 °F
Light Wind
3-4ft
Friday
High: 55 °F
Light Wind
4ft
Friday Night
Low: 49 °F
Light Wind
3ft
Saturday
High: 55 °F
Light Wind
3ft
Saturday Night
Low: 49 °F
Light Wind
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:24 pm AKDT Jul 7, 2026
Forecast Valid: 12am AKDT Jul 8, 2026-6pm AKDT Jul 14, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Areas of slightly increased winds continue this afternoon into this evening, as the low pressure system moves southeasterly. Overall winds and seas diminish overnight into Wednesday as the low dissipates. Another system moves into the gulf Wednesday afternoon once again bringing increased southeasterly winds throughout the gulf.

Overnight

Variable winds 5 kt or less. A slight chance of showers before 1am. Seas around 3 ft.

Wednesday

Variable winds 5 kt or less. A chance of showers after 10am. Seas around 2 ft.

Wednesday Night

ESE wind 5 to 10 kt becoming ENE in the evening. A chance of showers. Seas 2 to 3 ft.

Thursday

NE wind 5 to 10 kt. A chance of showers before 10am. Seas 3 to 4 ft.

Thursday Night

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

Friday

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

Friday Night

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

Saturday

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

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 2 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.