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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 53 °F
S 10kt
1-2ft
Independence Day
High: 60 °F
SE 10kt
1-2ft
Friday Night
Low: 54 °F
SSE 10kt
2ft
Saturday
High: 57 °F
SSE 10kt
1-2ft
Saturday Night
Low: 54 °F
SSE 10kt
1-2ft
Sunday
High: 58 °F
Light Wind
1-2ft
Sunday Night
Low: 54 °F
S 10kt
2ft
Monday
High: 58 °F
SSE 15kt
2-3ft
Monday Night
Low: 54 °F
E 20kt
2-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:28 pm AKDT Jul 3, 2025
Forecast Valid: 6pm AKDT Jul 3, 2025-6pm AKDT Jul 10, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A weak ridge of high pressure will linger over the eastern Gulf and the panhandle through Friday night bringing drier weather and calmer winds. An area of low pressure will move E into the southern part of the gulf Friday through Saturday.

Tonight

S wind 5 to 10 kt becoming WSW in the evening. Partly cloudy. Seas 1 to 2 ft.

Independence Day

SE wind 5 to 10 kt. Partly sunny. Seas 1 to 2 ft.

Friday Night

SSE wind around 10 kt. A chance of showers, mainly after 1am. Seas around 2 ft.

Saturday

SSE wind 5 to 10 kt. A chance of rain. Seas 1 to 2 ft.

Saturday Night

SSE wind 5 to 10 kt. Mostly cloudy. Seas 1 to 2 ft.

Sunday

Variable winds 5 kt or less. A chance of rain before 4pm. Seas 1 to 2 ft.

Sunday Night

S wind around 10 kt. A chance of rain after 10pm. Seas around 2 ft.

Monday

SSE wind 10 to 15 kt. Rain likely. Seas 2 to 3 ft.

Monday Night

E wind 10 to 20 kt. Rain. Seas 2 to 4 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.