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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Today
High: 40 °F
ESE 20kt
8ft

Small Craft Advisory
Tonight
Low: 34 °F
ENE 15kt
5-7ft
Wednesday
High: 41 °F
ENE 10kt
3ft
Wednesday Night
Low: 32 °F
Light Wind
2-3ft
Thursday
High: 41 °F
Light Wind
2ft
Thursday Night
Low: 36 °F
ENE 15kt
2ft
Friday
High: 39 °F
ESE 20kt
4ft
Friday Night
Low: 39 °F
ESE 10kt
4ft
Saturday
High: 40 °F
SE 10kt
4-5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:57 am AKDT Mar 31, 2026
Forecast Valid: 5am AKDT Mar 31, 2026-6pm AKDT Apr 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH THIS EVENING...

Synopsis: A low moving from the central gulf to the coast of Haida Gwaii will generate gale force winds and large seas over the central and southern Gulf waters and towards the southern coastal waters. Outflow conditions will bring northerly strong breezes in the northern half of the inner channels. Winds and seas will diminish late Tuesday night into Wednesday. A weaker front moves into the area beginning Thursday.

Today

ESE wind around 20 kt, with gusts as high as 30 kt. Snow, possibly mixing with rain after 7am, then gradually ending. Seas 5 ft building to 8 ft.

Tonight

ENE wind 10 to 15 kt. Mostly clear. Seas 5 to 7 ft.

Wednesday

ENE wind around 10 kt. Sunny. Seas around 3 ft.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. A chance of rain after 4pm. Seas around 2 ft.

Thursday Night

ENE wind 10 to 15 kt. Rain likely before 4am, then snow, possibly mixed with rain. Seas around 2 ft.

Friday

ESE wind 15 to 20 kt. Rain and snow showers, becoming all rain after 10am. Seas around 4 ft.

Friday Night

ESE wind around 10 kt. Showers. Seas around 4 ft.

Saturday

SE wind around 10 kt. Showers. Seas 4 to 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.