For More Weather Information:

Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 46 °F
SSE 10kt
1-2ft
Tonight
Low: 43 °F
SE 20kt
2-4ft

Small Craft Advisory
Wednesday
High: 48 °F
SE 25kt
3-4ft
Wednesday Night
Low: 44 °F
S 10kt
2-3ft
Thursday
High: 47 °F
SSE 10kt
1-2ft
Thursday Night
Low: 43 °F
ESE 15kt
2-3ft
Friday
High: 46 °F
E 15kt
3ft
Friday Night
Low: 43 °F
SE 15kt
3ft
Saturday
High: 47 °F
ESE 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:50 am AKST Dec 2, 2025
Forecast Valid: 12pm AKST Dec 2, 2025-6pm AKST Dec 8, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY LATE TONIGHT...

Synopsis: Onshore SW flow diminishing Tuesday morning. Front incoming from the west expected Tuesday into Tuesday night. Onshore flow returns Wednesday. Another area of low pressure expected to move north through the central Gulf Thursday and Friday. General outflow pattern likely this weekend.

This Afternoon

SSE wind 5 to 10 kt. Rain likely after 3pm. Seas 1 to 2 ft.

Tonight

SE wind 10 to 20 kt. Rain. Seas 2 to 4 ft.

Wednesday

SE wind 15 to 25 kt, with gusts as high as 30 kt. Rain. Seas 3 to 4 ft.

Wednesday Night

SSE wind 5 to 10 kt becoming WNW after midnight. Rain, mainly before 3am. Seas 2 to 3 ft.

Thursday

SSW wind 5 to 10 kt becoming SSE in the afternoon. Rain likely, mainly after 3pm. Seas 1 to 2 ft.

Thursday Night

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

Friday

E wind 10 to 15 kt. Rain. Seas around 3 ft.

Friday Night

SE wind 10 to 15 kt. Rain. Seas around 3 ft.

Saturday

ESE wind 10 to 15 kt. Rain. Seas around 3 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.