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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 62 °F
Light Wind
1ft
Tonight
Low: 52 °F
Light Wind
1ft
Sunday
High: 58 °F
Light Wind
2ft
Sunday Night
Low: 51 °F
Light Wind
2ft
Monday
High: 56 °F
Light Wind
1ft
Monday Night
Low: 50 °F
Light Wind
1ft
Tuesday
High: 56 °F
Light Wind
1ft
Tuesday Night
Low: 49 °F
Light Wind
1ft
Wednesday
High: 58 °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: 3:10 pm AKDT Jul 5, 2025
Forecast Valid: 3pm AKDT Jul 5, 2025-6pm AKDT Jul 11, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A trough of low pressure continues to push into the eastern Gulf from the SW through this evening, causing an increase in winds. Winds increase further on Sunday as an organized front moves over the eastern Gulf & Panhandle & an associated low center moves into the NW Gulf of Alaska.

This Afternoon

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

Tonight

Variable winds 5 kt or less. Scattered showers, mainly after 1am. Seas around 1 ft.

Sunday

Variable winds 5 kt or less. Showers, mainly after 7am. Seas around 2 ft.

Sunday Night

Variable winds 5 kt or less. Showers. Seas around 2 ft.

Monday

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

Monday Night

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

Tuesday

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

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Rain likely. 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.