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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Today
High: 58 °F
Light Wind
1ft
Tonight
Low: 51 °F
Light Wind
1-2ft
Tuesday
High: 57 °F
Light Wind
1ft
Tuesday Night
Low: 49 °F
Light Wind
1ft
Wednesday
High: 59 °F
Light Wind
1ft
Wednesday Night
Low: 50 °F
Light Wind
< 1ft
Thursday
High: 60 °F
Light Wind
< 1ft
Thursday Night
Low: 50 °F
Light Wind
< 1ft
Independence Day
High: 61 °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: 9:03 am AKDT Jun 30, 2025
Forecast Valid: 11am AKDT Jun 30, 2025-6pm AKDT Jul 6, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A low over the SE Gulf will slowly weaken and lift northeast to be over the north central inner channels by Tuesday afternoon. A ridge of high pressure will begin to build over the gulf Tuesday afternoon to be over easter gulf by Wed.

Today

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

Tonight

Variable winds 5 kt or less. Showers likely. Seas 1 to 2 ft.

Tuesday

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

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. A chance of showers after 7am. Seas around 1 ft.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. A chance of rain after 10am. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Independence Day

Variable winds 5 kt or less. Cloudy. 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.