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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Tuesday
High: 57 °F
Light Wind
< 1ft
Tuesday Night
Low: 42 °F
Light Wind
< 1ft
Wednesday
High: 51 °F
Light Wind
< 1ft
Wednesday Night
Low: 41 °F
Light Wind
< 1ft
Thursday
High: 51 °F
Light Wind
1ft
Thursday Night
Low: 42 °F
Light Wind
< 1ft
Friday
High: 53 °F
Light Wind
< 1ft
Friday Night
Low: 40 °F
Light Wind
< 1ft
Saturday
High: 52 °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: 2:40 pm AKDT May 11, 2026
Forecast Valid: 3am AKDT May 12, 2026-6pm AKDT May 18, 2026

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Detailed Forecast

Synopsis: A front pushes into the eastern Gulf Tuesday morning, with increasing winds and seas across the Gulf and N Gulf Coast. Seas and winds will jump slightly across the inner channels on Wednesday as the front pushes across the panhandle, but should remain below small craft criteria.

Tuesday

Variable winds 5 kt or less. Sprinkles after 1pm. Areas of fog before 10am. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Sprinkles before 7pm, then a chance of showers, mainly after 1am. Patchy fog after 1am. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Rain, mainly after 7am. Areas of fog before 10am. Seas 1 ft or less.

Wednesday Night

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

Thursday

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

Thursday Night

Variable winds 5 kt or less. Showers likely, mainly before 4am. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Showers likely, mainly between 10am and 4pm. Seas 1 ft or less.

Friday Night

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

Saturday

Variable winds 5 kt or less. Showers likely. 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.