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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 40 °F
Light Wind
1ft
Tonight
Low: 31 °F
Light Wind
< 1ft
Monday
High: 40 °F
Light Wind
1-2ft
Monday Night
Low: 36 °F
SE 10kt
2ft
Tuesday
High: 42 °F
Light Wind
1-2ft
Tuesday Night
Low: 38 °F
Light Wind
1ft
Wednesday
High: 45 °F
Light Wind
1ft
Wednesday Night
Low: 39 °F
Light Wind
1ft
Thursday
High: 45 °F
ESE 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:04 pm AKST Nov 16, 2025
Forecast Valid: 4pm AKST Nov 16, 2025-6pm AKST Nov 22, 2025

View Nearby Observations

Detailed Forecast

Synopsis: A front will advance across the gulf Monday bringing a small section of gale force conditions to Cape St. Elias, with strong breezes to near-gale force conditions for much of the coast. Southerly winds build Monday through the inner channels, reaching fresh to strong breezes by Monday afternoon.

This Afternoon

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

Tonight

Variable winds 5 kt or less. Patchy fog between 9pm and midnight. Patchy freezing fog between midnight and 3am. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. A chance of snow before 9am, then rain and snow likely. Seas 1 to 2 ft.

Monday Night

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

Tuesday

Variable winds 5 kt or less. Rain likely, mainly before 3pm. Seas 1 to 2 ft.

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Rain likely, mainly after 9am. Seas around 1 ft.

Wednesday Night

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

Thursday

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