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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 64 °F
NW 10kt
2ft
Tonight
Low: 56 °F
NW 10kt
2ft
Tuesday
High: 66 °F
NW 15kt
2-3ft
Tuesday Night
Low: 56 °F
NW 15kt
3ft
Wednesday
High: 66 °F
NNW 15kt
3ft
Wednesday Night
Low: 57 °F
NW 15kt
2-3ft
Thursday
High: 65 °F
NW 10kt
2-3ft
Thursday Night
Low: 56 °F
NW 15kt
2-3ft
Friday
High: 62 °F
NW 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: 9:14 am AKDT Jul 14, 2025
Forecast Valid: 1pm AKDT Jul 14, 2025-6pm AKDT Jul 20, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A ridge of high pressure builds over the gulf and persists to the end of the week. With ridging over the gulf, an increased pressure gradient will increase winds near the coast. Daily sea breezes will develop as well, increasing winds for parts of the inner channels.

This Afternoon

NW wind around 10 kt. Sunny. Seas around 2 ft.

Tonight

NW wind around 10 kt. Patchy fog after 1am. Seas around 2 ft.

Tuesday

NW wind around 15 kt. Patchy fog before 7am. Seas 2 to 3 ft.

Tuesday Night

NW wind around 15 kt. Mostly clear. Seas around 3 ft.

Wednesday

NNW wind around 15 kt. Sunny. Seas around 3 ft.

Wednesday Night

NW wind 10 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.

Thursday

NW wind around 10 kt. Mostly cloudy. Seas 2 to 3 ft.

Thursday Night

NW wind 10 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.

Friday

NW wind around 10 kt. Mostly cloudy. 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.