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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 54 °F
Light Wind
1ft
Sunday
High: 64 °F
Light Wind
1ft
Sunday Night
Low: 52 °F
Light Wind
1ft
Monday
High: 58 °F
Light Wind
1ft
Monday Night
Low: 50 °F
Light Wind
1ft
Tuesday
High: 57 °F
Light Wind
< 1ft
Tuesday Night
Low: 49 °F
Light Wind
< 1ft
Wednesday
High: 57 °F
Light Wind
< 1ft
Wednesday Night
Low: 49 °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: 6:25 pm AKDT Jun 13, 2026
Forecast Valid: 9pm AKDT Jun 13, 2026-6pm AKDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A front will stick around over the eastern Gulf through Saturday. Then, a stronger gale force frontal system will track northward through the eastern Gulf tonight into Sunday. Unsettled conditions linger through the first half of the week, before high pressure begins to build over the Gulf on Thursday.

Tonight

Variable winds 5 kt or less. Rain likely before 10pm, then a chance of rain after 1am. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Rain, mainly after 4pm. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Rain. The rain could be heavy at times. 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.

Tuesday

Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Showers likely, mainly before 10pm. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.

Wednesday Night

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