For More Weather Information:

Juneau, AK Local Forecast Office

Cape Spencer AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 46 °F
E 10kt
4-5ft
Wednesday
High: 51 °F
SSW 10kt
4ft
Wednesday Night
Low: 46 °F
SW 15kt
5ft
Thursday
High: 50 °F
SSW 10kt
4ft
Thursday Night
Low: 46 °F
Light Wind
3-4ft
Friday
High: 51 °F
SE 10kt
3ft
Friday Night
Low: 46 °F
ESE 10kt
3-4ft
Saturday
High: 51 °F
E 15kt
5-6ft
Saturday Night
Low: 46 °F
E 15kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:56 pm AKDT Sep 29, 2026
Forecast Valid: 9pm AKDT Sep 29, 2026-6pm AKDT Oct 6, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A weakening 1001 mb low in the northern gulf will diminish through Tuesday night. Westerly 15 to 20 kt winds and seas of 6 to 9 feet in the Gulf of Alaska will steadily decrease into Wednesday. 10 to 15 kt S winds in the southern and central inner channels will decrease overnight. The next system approaches the panhandle Wednesday, increasing winds and seas again.

Tonight

E wind 5 to 10 kt. Scattered showers, mainly after 1am. Seas 4 to 5 ft.

Wednesday

SSW wind 5 to 10 kt. Showers, mainly after 10am. Seas around 4 ft.

Wednesday Night

SW wind around 15 kt. Showers. Seas around 5 ft.

Thursday

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

Thursday Night

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

Friday

SE wind around 10 kt. Showers. Seas around 3 ft.

Friday Night

ESE wind around 10 kt. Showers likely. Seas 3 to 4 ft.

Saturday

E wind 10 to 15 kt. Showers. Seas 5 to 6 ft.

Saturday Night

E wind around 15 kt. Showers. The rain could be heavy at times. 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.