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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Overnight
Low: 44 °F
Light Wind
1-2ft
Thursday
High: 47 °F
Light Wind
1ft
Thursday Night
Low: 41 °F
E 10kt
1-2ft
Friday
High: 45 °F
NNW 10kt
2ft
Friday Night
Low: 41 °F
SSE 15kt
2-3ft
Saturday
High: 46 °F
S 15kt
3ft
Saturday Night
Low: 41 °F
⇑SSE 30kt
9ft
Sunday
High: 46 °F
SSE 30kt⇓
10ft
Sunday Night
Low: 39 °F
S 20kt
10ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:56 pm AKST Dec 3, 2025
Forecast Valid: 11pm AKST Dec 3, 2025-6pm AKST Dec 10, 2025

View Nearby Observations

Detailed Forecast

Synopsis: The recent front continues to move over the panhandle through late tonight, with ridging forming behind the front. Another low pressure tracks through the southern Gulf and into Haida Gwaii late Thursday and Friday. General low pressure pattern in the Gulf expected this weekend.

Overnight

Variable winds 5 kt or less. A slight chance of rain between midnight and 3am. Seas 1 to 2 ft.

Thursday

Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.

Thursday Night

E wind 5 to 10 kt. Rain likely, mainly between 9pm and midnight. Seas 1 to 2 ft.

Friday

N wind around 10 kt becoming SSW in the afternoon. Rain likely, mainly after 3pm. Seas around 2 ft.

Friday Night

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

Saturday

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

Saturday Night

SSE wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 40 kt. Rain. Seas 3 ft building to 9 ft.

Sunday

SSE wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Winds could gust as high as 40 kt. Rain. Seas 10 ft subsiding to 5 ft.

Sunday Night

S wind around 20 kt, with gusts as high as 40 kt. Rain. Seas 5 ft building to 10 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.