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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 58 °F
S 15kt
3ft
Tonight
Low: 54 °F
ESE 15kt
3ft
Sunday
High: 58 °F
SSE 15kt
3ft
Sunday Night
Low: 54 °F
SSE 15kt
2-3ft
Monday
High: 57 °F
SSE 20kt⇓
2-4ft
Monday Night
Low: 53 °F
E 15kt
3ft
Tuesday
High: 58 °F
S 15kt
3ft
Tuesday Night
Low: 52 °F
SSE 10kt
2-4ft
Wednesday
High: 59 °F
SSE 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: 3:10 pm AKDT Jul 5, 2025
Forecast Valid: 3pm AKDT Jul 5, 2025-6pm AKDT Jul 11, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A trough of low pressure continues to push into the eastern Gulf from the SW through this evening, causing an increase in winds. Winds increase further on Sunday as an organized front moves over the eastern Gulf & Panhandle & an associated low center moves into the NW Gulf of Alaska.

This Afternoon

S wind around 15 kt. Isolated showers. Seas around 3 ft.

Tonight

ESE wind around 15 kt. Showers likely, mainly after 1am. Seas around 3 ft.

Sunday

SSE wind around 15 kt. Showers likely, mainly before 1pm. Seas around 3 ft.

Sunday Night

SSE wind 10 to 15 kt. Showers, mainly after 7pm. Seas 2 to 3 ft.

Monday

SSE wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Showers likely, mainly after 1pm. Seas 2 to 4 ft.

Monday Night

E wind around 15 kt. Showers. Seas around 3 ft.

Tuesday

S wind around 15 kt. Showers likely, mainly before 4pm. Seas around 3 ft.

Tuesday Night

SSE wind around 10 kt. A chance of showers. Seas 2 to 4 ft.

Wednesday

SSE wind around 10 kt. Mostly sunny. 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.