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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 41 °F
⇑S 30kt
7ft

Gale Warning
Wednesday
High: 45 °F
SSE 30kt⇓
9ft

Gale Warning
Wednesday Night
Low: 41 °F
SSE 35kt
10ft
Thursday
High: 45 °F
S 30kt
10ft
Thursday Night
Low: 38 °F
S 25kt⇓
6ft
Friday
High: 42 °F
ESE 10kt
2ft
Friday Night
Low: 35 °F
Light Wind
1ft
Saturday
High: 41 °F
Light Wind
1ft
Saturday Night
Low: 36 °F
Light Wind
1ft

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 AKST Feb 10, 2026
Forecast Valid: 9pm AKST Feb 10, 2026-6pm AKST Feb 17, 2026

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Detailed Forecast

...GALE WARNING LATE TONIGHT THROUGH WEDNESDAY...

Synopsis: Winds increase to near gale force along our coast and inner channels Tuesday night into Wednesday. A stronger system moves in Wednesday night increasing winds to storm force for much of our coastal zones. Seas are expected to build 35 to 40 ft along the eastern gulf of Alaska by Thursday.

Tonight

S wind 20 to 25 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 35 kt. Rain, mainly after midnight. Seas 4 ft building to 7 ft.

Wednesday

SSE wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Winds could gust as high as 35 kt. Rain, mainly after 3pm. Seas 9 ft subsiding to 6 ft.

Wednesday Night

SSE wind 25 to 35 kt. Rain. Seas 6 ft building to 10 ft.

Thursday

S wind 25 to 30 kt, with gusts as high as 40 kt. Rain. Seas 10 ft subsiding to 7 ft.

Thursday Night

S wind 15 to 25 kt becoming ESE 5 to 10 kt after midnight. Winds could gust as high as 30 kt. Rain, mainly before 3am. Seas 6 ft subsiding to 3 ft.

Friday

ESE wind 5 to 10 kt. Rain likely, mainly between 9am and 3pm. Seas around 2 ft.

Friday Night

Variable winds 5 kt or less. A chance of rain before 9pm. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. Partly sunny. Seas around 1 ft.

Saturday Night

Variable winds 5 kt or less. A chance of rain. Seas around 1 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.