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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 32 °F
NW 15kt
2ft
Sunday
High: 39 °F
NW 10kt
1-2ft
Sunday Night
Low: 33 °F
S 10kt
1-2ft
Monday
High: 40 °F
E 10kt
2ft
Monday Night
Low: 35 °F
SE 25kt
4-6ft
Tuesday
High: 42 °F
ESE 30kt
6ft
Tuesday Night
Low: 39 °F
ESE 25kt⇓
3-5ft
Wednesday
High: 47 °F
ENE 10kt
2ft
Wednesday Night
Low: 37 °F
Light Wind
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:18 pm AKDT Mar 28, 2026
Forecast Valid: 9pm AKDT Mar 28, 2026-6pm AKDT Apr 4, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Weak low pressure will remain over the area before giving way to high pressure by Sunday. Snow showers linger over the southern Gulf and the southern inner channels into Saturday night. Northerly outflow picks back up for a short period through the northern inner channels to moderate to strong breezes through early Sunday morning.

Tonight

NW wind 10 to 15 kt. Partly cloudy. Seas around 2 ft.

Sunday

NW wind 5 to 10 kt becoming S in the afternoon. Rain and snow showers likely, mainly after 4pm. Seas 1 to 2 ft.

Sunday Night

S wind 5 to 10 kt. Rain and snow showers likely, mainly after 4am. Seas 1 to 2 ft.

Monday

NNW wind around 10 kt becoming SSE in the morning. Rain and snow showers likely before 10am, then snow showers between 10am and 1pm, then rain showers after 1pm. Seas around 2 ft.

Monday Night

SE wind 20 to 25 kt, with gusts as high as 30 kt. Showers. Seas 4 to 6 ft.

Tuesday

ESE wind 25 to 30 kt. Showers. Seas around 6 ft.

Tuesday Night

ESE wind 20 to 25 kt decreasing to 10 to 15 kt in the evening. Showers likely, mainly before 10pm. Seas 3 to 5 ft.

Wednesday

ENE wind 5 to 10 kt becoming N in the morning. A chance of showers. Seas around 2 ft.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 to 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.