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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 23 °F
Light Wind
< 1ft
Friday
High: 33 °F
Light Wind
< 1ft
Friday Night
Low: 24 °F
Light Wind
< 1ft
Saturday
High: 36 °F
Light Wind
1ft
Saturday Night
Low: 32 °F
Light Wind
1ft
Sunday
High: 40 °F
Light Wind
1ft
Sunday Night
Low: 34 °F
Light Wind
1ft
Monday
High: 42 °F
Light Wind
1ft
Monday Night
Low: 35 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:51 pm AKST Feb 26, 2026
Forecast Valid: 7pm AKST Feb 26, 2026-6pm AKST Mar 5, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A weakening low in the northeastern gulf is drifting SE tonight and is sending continuous snow showers into the panhandle. W winds in the central Gulf will gradually diminish through Friday. Gale force northerly outflow winds in the northern inner channels persist through Friday morning before diminishing, with strongest gusts only making it halfway down the panhandle before diminishing.

Tonight

Variable winds 5 kt or less. Snow showers likely, mainly before 3am. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. A chance of snow showers, mainly between noon and 3pm. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of snow showers. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. Snow. Seas around 1 ft.

Saturday Night

Variable winds 5 kt or less. Snow before 9pm, then rain and snow. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Rain and snow, becoming all rain after 9am. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Rain. Seas around 1 ft.

Monday

Variable winds 5 kt or less. Rain. Seas around 1 ft.

Monday Night

Variable winds 5 kt or less. Rain. Seas around 1 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.