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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Today
High: 49 °F
Light Wind
1ft
Tonight
Low: 41 °F
Light Wind
1ft
Friday
High: 47 °F
ESE 10kt
1-2ft
Friday Night
Low: 41 °F
ESE 10kt
< 1ft
Saturday
High: 46 °F
ESE 10kt
< 1ft
Saturday Night
Low: 38 °F
Light Wind
< 1ft
Sunday
High: 44 °F
Light Wind
1ft
Sunday Night
Low: 37 °F
Light Wind
1ft
Monday
High: 43 °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: 5:18 am AKST Feb 5, 2026
Forecast Valid: 5am AKST Feb 5, 2026-6pm AKST Feb 11, 2026

View Nearby Observations

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.

Today

Variable winds 5 kt or less. A chance of rain, mainly after 3pm. Seas around 1 ft.

Tonight

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

Friday

ESE wind 5 to 10 kt. Rain, mainly after noon. Seas 1 to 2 ft.

Friday Night

ESE wind 5 to 10 kt. Rain. Seas 1 ft or less.

Saturday

ESE wind 5 to 10 kt. Rain. Seas 1 ft or less.

Saturday Night

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

Sunday

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

Sunday Night

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

Monday

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.