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Juneau, AK Local Forecast Office

4NM ESE Grindall Island AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 9 °C
NW 20km/h
1m
Tonight
Low: 5 °C
NW 25km/h
1m
Tuesday
High: 9 °C
NW 15km/h
< 1m
Tuesday Night
Low: 6 °C
NW 25km/h
1m
Wednesday
High: 11 °C
NW 25km/h
1m
Wednesday Night
Low: 6 °C
W 15km/h
< 1m
Thursday
High: 9 °C
NNW 15km/h
< 1m
Thursday Night
Low: 7 °C
NW 15km/h
1m
Friday
High: 13 °C
NNW 10km/h
< 1m

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:20 am AKDT Apr 20, 2026
Forecast Valid: 1pm AKDT Apr 20, 2026-6pm AKDT Apr 26, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A weak low pressure system is currently in place over the northern central gulf, with the associated front moving eastward over the panhandle. A second, weak front is expected to move over the northern half of the panhandle tonight, while high pressure remains over the eastern gulf waters and southern panhandle.

This Afternoon

NW wind around 20 km/h. Mostly sunny. Seas around 1 m.

Tonight

NW wind around 25 km/h. Mostly clear. Seas around 1 m.

Tuesday

NW wind around 15 km/h. Mostly sunny. Seas 1 m or less.

Tuesday Night

NW wind 20 to 25 km/h. Partly cloudy. Seas around 1 m.

Wednesday

NW wind 20 to 25 km/h. Mostly sunny. Seas around 1 m.

Wednesday Night

W wind around 15 km/h. Partly cloudy. Seas 1 m or less.

Thursday

NNW wind 10 to 15 km/h. Mostly sunny. Seas 1 m or less.

Thursday Night

NW wind around 15 km/h. Partly cloudy. Seas around 1 m.

Friday

NNW wind around 10 km/h. Mostly sunny. Seas 1 m or less.

*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.