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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Monday
High: 44 °F
ESE 10kt
5ft
Monday Night
Low: 42 °F
ESE 15kt
4-5ft
Tuesday
High: 46 °F
ESE 25kt
7ft
Tuesday Night
Low: 44 °F
ESE 20kt
7-8ft
Wednesday
High: 47 °F
E 10kt
7ft
Wednesday Night
Low: 42 °F
E 15kt
7-8ft
Thursday
High: 46 °F
⇑ENE 25kt
11ft
Thursday Night
Low: 42 °F
ENE 25kt
11-13ft
Friday
High: 47 °F
ESE 20kt
13ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:10 am AKST Nov 2, 2026
Forecast Valid: 3am AKST Nov 2, 2026-6pm AKST Nov 8, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Elevated seas 7 to 10 ft will continue for the outside waters today. A mesolow lifting into Dixon Entrance will bring elevated winds and seas for southern Clarence Straight as well. The next front will push into the outside waters on Monday night into Tuesday, bringing gale force winds and 15 to 25+ foot seas. Storm force gusts possible for the northern coastal waters. Winds will become strong for the inner channels, with potential for gale force winds Clarence Strait, Tuesday afternoon and night as the front approaches.

Monday

ESE wind around 10 kt. Rain likely, mainly before 3pm. Seas around 5 ft.

Monday Night

ESE wind 10 to 15 kt. A chance of rain, mainly between midnight and 3am. Seas 4 to 5 ft.

Tuesday

ESE wind 15 to 25 kt. Rain, mainly after noon. Seas 4 ft building to 7 ft.

Tuesday Night

ESE wind 10 to 20 kt, with gusts as high as 30 kt. Rain. Seas 7 to 8 ft.

Wednesday

E wind around 10 kt. Rain likely before noon, then showers, mainly after noon. Seas around 7 ft.

Wednesday Night

E wind 10 to 15 kt. Showers. Seas 7 to 8 ft.

Thursday

ENE wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Rain. Seas 8 ft building to 11 ft.

Thursday Night

ENE wind 20 to 25 kt becoming ESE after midnight. Winds could gust as high as 35 kt. Rain. Seas 11 to 13 ft.

Friday

ESE wind around 20 kt becoming S in the afternoon. Winds could gust as high as 35 kt. Rain. Seas 13 ft subsiding to 10 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.