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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 49 °F
NE 10kt
2-3ft
Thursday
High: 57 °F
NE 15kt
4ft
Thursday Night
Low: 49 °F
Light Wind
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
2-3ft
Sunday
High: 55 °F
Light Wind
2ft
Sunday Night
Low: 49 °F
Light Wind
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:25 pm AKDT Jul 8, 2026
Forecast Valid: 6pm AKDT Jul 8, 2026-6pm AKDT Jul 15, 2026

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Detailed Forecast

Synopsis: Southeasterly winds reaching up to 25 kts across the Inner Channels and along the Gulf coast today as a frontal system moves into the Southern Panhandle through Thursday. Winds expected to remain heightened overnight and start to weaken tomorrow morning, with the exception of southern Clarence Strait which will see the highest sustained overnight winds, and gusts up to 30 kts by late afternoon. Southwesterly swell increasing steadily today and seas up to 8 ft in the Gulf expected tonight before diminishing to 6ft through Friday.

Tonight

SW wind 5 to 10 kt becoming NE in the evening. Mostly cloudy. Seas 2 to 3 ft.

Thursday

NE wind 5 to 15 kt. Mostly sunny. Seas around 4 ft.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers before 10pm, then a chance of showers after 1am. Seas around 4 ft.

Friday

Variable winds 5 kt or less. A chance of showers before 10am. 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 2 to 3 ft.

Sunday

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

Sunday Night

Variable winds 5 kt or less. A chance of showers. Seas 2 to 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.