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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 49 °F
W 10kt
3-4ft
Tuesday
High: 55 °F
WSW 15kt
4ft
Tuesday Night
Low: 51 °F
WSW 15kt
4ft
Wednesday
High: 56 °F
WSW 15kt
4ft
Wednesday Night
Low: 50 °F
SW 10kt
3ft
Thursday
High: 54 °F
⇑E 20kt
7ft
Thursday Night
Low: 50 °F
ENE 25kt⇓
7-8ft
Friday
High: 54 °F
ENE 15kt
5-6ft
Friday Night
Low: 50 °F
S 15kt
5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:43 pm AKDT Jul 7, 2025
Forecast Valid: 10pm AKDT Jul 7, 2025-6pm AKDT Jul 14, 2025

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Detailed Forecast

Synopsis: Low pressure over will continue to weaken as it moves across the central Inner Channels through Monday night. Some showers along the southern Outer Coast may develop into thunderstorms during this period. Broad ridging and westerly onshore flow will set up for Tuesday followed by the high pressure building over the Inner Channels for Wednesday.

Tonight

W wind 5 to 10 kt. A slight chance of showers. Seas 3 to 4 ft.

Tuesday

WSW wind around 15 kt. A slight chance of showers before 10am. Seas around 4 ft.

Tuesday Night

WSW wind 10 to 15 kt. Scattered showers. Seas around 4 ft.

Wednesday

WSW wind 10 to 15 kt. A chance of showers. Seas around 4 ft.

Wednesday Night

SW wind 5 to 10 kt becoming S after midnight. A chance of rain. Seas around 3 ft.

Thursday

E wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Rain. Seas 4 ft building to 7 ft.

Thursday Night

ENE wind 20 to 25 kt decreasing to 10 to 15 kt in the evening. Winds could gust as high as 30 kt. Rain. Seas 7 to 8 ft.

Friday

ENE wind 10 to 15 kt becoming SSE in the morning. Rain. Seas 5 to 6 ft.

Friday Night

S wind 10 to 15 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.