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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 33 °F
Light Wind
3ft
Tonight
Low: 28 °F
NE 10kt
2-3ft
Sunday
High: 34 °F
ENE 10kt
3ft
Sunday Night
Low: 29 °F
ENE 15kt
3ft
Monday
High: 36 °F
ENE 20kt
3ft
Monday Night
Low: 35 °F
NE 20kt
4-5ft
Tuesday
High: 40 °F
ENE 30kt
7ft
Tuesday Night
Low: 37 °F
NE 20kt
6-7ft
Wednesday
High: 42 °F
ENE 15kt
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: 2:18 pm AKDT Mar 28, 2026
Forecast Valid: 3pm AKDT Mar 28, 2026-6pm AKDT Apr 3, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Weak low pressure will remain over the area before giving way to high pressure by Sunday. Snow showers linger over the southern Gulf and the southern inner channels into Saturday night. Northerly outflow picks back up for a short period through the northern inner channels to moderate to strong breezes through early Sunday morning.

This Afternoon

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

Tonight

NE wind 5 to 10 kt. Partly cloudy. Seas 2 to 3 ft.

Sunday

ENE wind around 10 kt. Mostly sunny. Seas around 3 ft.

Sunday Night

ENE wind 10 to 15 kt. A chance of snow showers. Seas around 3 ft.

Monday

ENE wind 15 to 20 kt. Snow showers likely, mainly after 10am. Seas around 3 ft.

Monday Night

NE wind around 20 kt, with gusts as high as 30 kt. Snow showers likely before 10pm, then rain and snow showers likely between 10pm and 1am, then snow showers likely after 1am. Seas 4 to 5 ft.

Tuesday

ENE wind around 30 kt. Snow showers likely before 10am, then rain and snow showers likely. Seas around 7 ft.

Tuesday Night

NE wind around 20 kt, with gusts as high as 35 kt. A chance of showers. Seas 6 to 7 ft.

Wednesday

ENE wind 10 to 15 kt. Partly sunny. 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.