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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 46 °F
Light Wind
1ft
Tonight
Low: 41 °F
Light Wind
1ft
Friday
High: 47 °F
SE 10kt
1-2ft
Friday Night
Low: 41 °F
ESE 10kt
1-2ft
Saturday
High: 43 °F
ESE 10kt
1-2ft
Saturday Night
Low: 34 °F
SE 10kt
1-2ft
Sunday
High: 39 °F
SE 10kt
1ft
Sunday Night
Low: 36 °F
Light Wind
1ft
Monday
High: 41 °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: 3:33 pm AKST Feb 5, 2026
Forecast Valid: 4pm AKST Feb 5, 2026-6pm AKST Feb 11, 2026

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Detailed Forecast

Synopsis: Winds will continue to diminish throughout the day. This will allow for patches of fog to develop in protected areas. Another front will move through the region Friday, increasing southeast winds to near gale force in Clarence Strait.

This Afternoon

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

Tonight

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

Friday

SSW wind 5 to 10 kt becoming SE in the afternoon. Showers, mainly after 9am. Seas 1 to 2 ft.

Friday Night

ESE wind around 10 kt. Showers. Seas 1 to 2 ft.

Saturday

ESE wind 5 to 10 kt. Rain. Seas 1 to 2 ft.

Saturday Night

SE wind 5 to 10 kt. Rain. Seas 1 to 2 ft.

Sunday

SE wind 5 to 10 kt. Showers. Seas around 1 ft.

Sunday Night

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

Monday

Variable winds 5 kt or less. Showers. 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.