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Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 51 °F
WNW 15kt
4-5ft
Sunday
High: 55 °F
Light Wind
4ft
Sunday Night
Low: 50 °F
Light Wind
3-4ft
Labor Day
High: 54 °F
Light Wind
3ft
Monday Night
Low: 53 °F
Light Wind
3-4ft
Tuesday
High: 56 °F
S 15kt
3-4ft
Tuesday Night
Low: 50 °F
SSW 15kt
4-5ft
Wednesday
High: 55 °F
SW 10kt
5-6ft
Wednesday Night
Low: 49 °F
WSW 10kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:36 pm AKDT Sep 5, 2026
Forecast Valid: 7pm AKDT Sep 5, 2026-6pm AKDT Sep 12, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A ridge of high pressure remains over the eastern gulf through the weekend bringing W to NW winds. With continued clear skies and warmer temperatures, sea breezes are likely to impact the inside channels for the weekend. A weak front moves into the eastern gulf from the west Sunday night into Monday.

Tonight

WNW wind 5 to 15 kt. Patchy fog. Seas 4 to 5 ft.

Sunday

Variable winds 5 kt or less. Patchy fog before 1pm. Seas around 4 ft.

Sunday Night

Variable winds 5 kt or less. Rain likely, mainly after 4am. Patchy fog between 7pm and 1am. Seas 3 to 4 ft.

Labor Day

Variable winds 5 kt or less. Rain. Seas around 3 ft.

Monday Night

Variable winds 5 kt or less. Rain. Seas 3 to 4 ft.

Tuesday

S wind 5 to 15 kt. Rain. The rain could be heavy at times. Seas 3 to 4 ft.

Tuesday Night

SSW wind around 15 kt. Rain. The rain could be heavy at times. Seas 4 to 5 ft.

Wednesday

SW wind around 10 kt becoming W in the morning. Rain. Seas 5 to 6 ft.

Wednesday Night

WSW wind 5 to 10 kt. A chance of rain. Seas around 6 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.