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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 29 °F
Light Wind
1ft
New Year's Day
High: 34 °F
Light Wind
< 1ft
Thursday Night
Low: 25 °F
Light Wind
< 1ft
Friday
High: 30 °F
Light Wind
< 1ft
Friday Night
Low: 21 °F
Light Wind
< 1ft
Saturday
High: 26 °F
Light Wind
< 1ft
Saturday Night
Low: 20 °F
Light Wind
< 1ft
Sunday
High: 28 °F
Light Wind
< 1ft
Sunday Night
Low: 17 °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: 7:01 pm AKST Dec 31, 2025
Forecast Valid: 9pm AKST Dec 31, 2025-6pm AKST Jan 7, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Winds and seas continue to trend downward into the end of the week for the gulf, primary threat is outflow winds of near- gale to gale force along major bays and inlets along the northern coast, and outflow winds building in the inner channels.

Tonight

Variable winds 5 kt or less. A chance of rain and snow showers before midnight, then a chance of snow showers. Patchy fog between midnight and 3am. Areas of freezing fog after 3am. Seas around 1 ft.

New Year's Day

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Thursday Night

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

Friday

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

Friday Night

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

Saturday

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

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

Sunday Night

Variable winds 5 kt or less. A chance of snow. 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.