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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 49 °F
Light Wind
1ft
Monday
High: 60 °F
Light Wind
< 1ft
Monday Night
Low: 48 °F
Light Wind
< 1ft
Tuesday
High: 62 °F
Light Wind
< 1ft
Tuesday Night
Low: 50 °F
Light Wind
< 1ft
Wednesday
High: 59 °F
Light Wind
< 1ft
Wednesday Night
Low: 49 °F
Light Wind
< 1ft
Thursday
High: 59 °F
Light Wind
< 1ft
Thursday Night
Low: 49 °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: 2:36 pm AKDT Jun 7, 2026
Forecast Valid: 8pm AKDT Jun 7, 2026-6pm AKDT Jun 14, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A frontal system approaches & pushes into the eastern Gulf through Sunday night, bringing sustained winds of up to around 25 kt for the southeastern Gulf, the Dixon Entrance, & into Clarence Strait. The front remains mostly stationary and slowly weakens into Monday.

Tonight

Variable winds 5 kt or less. A slight chance of showers before 10pm. Seas around 1 ft.

Monday

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

Monday Night

Variable winds 5 kt or less. A chance of showers, mainly before 7pm. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Showers likely, mainly after 4pm. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Showers likely, mainly before 10pm. Patchy fog after 4am. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Showers, mainly after 10am. Patchy fog before 7am. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Showers, mainly before 10pm. Seas 1 ft or less.

Thursday

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

Thursday Night

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