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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

Today
High: 48 °F
SE 10kt
1-2ft
Tonight
Low: 42 °F
ESE 10kt
2ft
Saturday
High: 43 °F
ESE 10kt
1-2ft
Saturday Night
Low: 34 °F
SE 10kt
1-2ft
Sunday
High: 39 °F
SE 10kt
1ft
Sunday Night
Low: 36 °F
Light Wind
1ft
Monday
High: 41 °F
Light Wind
1ft
Monday Night
Low: 37 °F
Light Wind
< 1ft
Tuesday
High: 42 °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: 6:37 am AKST Feb 6, 2026
Forecast Valid: 9am AKST Feb 6, 2026-6pm AKST Feb 12, 2026

View Nearby Observations

Detailed Forecast

Synopsis: Areas of fog continue over portions of the inner channels Friday morning. Another front moves through the region Friday, increasing southeast winds to near gale force in Clarence Strait. Then a low in the gulf will continue to send showers with times of increased winds into SE Alaska.

Today

SE wind 5 to 10 kt. Rain, mainly after noon. Patchy fog before noon. Seas 1 to 2 ft.

Tonight

ESE wind around 10 kt. Rain. Seas around 2 ft.

Saturday

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

Saturday Night

SE wind 5 to 10 kt. Rain. Seas 1 to 2 ft.

Sunday

SE wind 5 to 10 kt. Showers. Seas around 1 ft.

Sunday Night

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

Monday

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

Monday Night

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

Tuesday

Variable winds 5 kt or less. Rain 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.