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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 46 °F
S 10kt
2ft
Wednesday
High: 52 °F
Light Wind
1ft
Wednesday Night
Low: 46 °F
Light Wind
1ft
Thursday
High: 53 °F
SSE 10kt
1ft
Thursday Night
Low: 47 °F
SE 10kt
2ft
Friday
High: 53 °F
SSE 10kt
2ft
Friday Night
Low: 48 °F
SE 15kt
2-3ft
Saturday
High: 53 °F
SE 20kt
3-4ft
Saturday Night
Low: 50 °F
SSE 20kt
5-6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:35 pm AKDT May 20, 2025
Forecast Valid: 6pm AKDT May 20, 2025-6pm AKDT May 27, 2025

View Nearby Observations

Detailed Forecast

Synopsis: Surface ridge builds over the panhandle tonight through Thursday. Area of low pressure moves into the eastern gulf Friday and lingers in the southern gulf through the weekend.

Tonight

S wind around 10 kt. Rain likely, mainly before 7pm. Seas around 2 ft.

Wednesday

Variable winds 5 kt or less. A chance of rain, mainly between 1pm and 4pm. Seas around 1 ft.

Wednesday Night

Variable winds 5 kt or less. A slight chance of showers before 7pm, then sprinkles between 7pm and 10pm. Seas around 1 ft.

Thursday

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

Thursday Night

SE wind around 10 kt. A chance for sprinkles, then a chance of rain after 10pm. Seas around 2 ft.

Friday

SSE wind around 10 kt. A chance of rain. Seas around 2 ft.

Friday Night

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

Saturday

SE wind 15 to 20 kt. Rain. Seas 3 to 4 ft.

Saturday Night

SSE wind around 20 kt. Rain. Seas 5 to 6 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.