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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Thursday
High: 43 °F
ESE 10kt
1-2ft
Thursday Night
Low: 38 °F
SE 10kt
2ft
Friday
High: 44 °F
E 15kt
2-3ft
Friday Night
Low: 38 °F
ESE 15kt
3ft
Saturday
High: 45 °F
ESE 15kt
3ft
Saturday Night
Low: 41 °F
ESE 10kt
1-2ft
Sunday
High: 43 °F
NNE 10kt
1-2ft
Sunday Night
Low: 34 °F
SE 10kt
2ft
Monday
High: 43 °F
ESE 10kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:42 pm AKST Nov 12, 2025
Forecast Valid: 2am AKST Nov 13, 2025-6pm AKST Nov 19, 2025

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Detailed Forecast

Synopsis: A weak low in the Northern Gulf remains near Prince William Sound while high pressure builds to the south of it. This low moves into the panhandle Thursday before a more organized front moves into the Gulf for Friday.

Thursday

NW wind 5 to 10 kt becoming ESE in the morning. A chance of showers, mainly after 3pm. Seas 1 to 2 ft.

Thursday Night

SE wind around 10 kt. A chance of rain showers before 9pm, then a chance of rain and snow showers. Seas around 2 ft.

Friday

E wind 10 to 15 kt. Rain, mainly after 9am. Seas 2 to 3 ft.

Friday Night

ESE wind around 15 kt. Rain. Seas around 3 ft.

Saturday

ESE wind 10 to 15 kt. Rain likely. Seas around 3 ft.

Saturday Night

ESE wind around 10 kt becoming NNE after midnight. Rain likely, mainly before 9pm. Seas 1 to 2 ft.

Sunday

NNE wind around 10 kt becoming SE in the afternoon. A chance of rain before 9am. Seas 1 to 2 ft.

Sunday Night

SE wind around 10 kt becoming NNE in the evening. A chance of rain. Seas around 2 ft.

Monday

ESE wind around 10 kt. A chance of rain. Seas around 2 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.