For More Weather Information:

Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 61 °F
Light Wind
1ft
Tonight
Low: 50 °F
Light Wind
< 1ft
Labor Day
High: 60 °F
Light Wind
< 1ft
Monday Night
Low: 52 °F
Light Wind
< 1ft
Tuesday
High: 58 °F
Light Wind
1ft
Tuesday Night
Low: 52 °F
SSE 10kt
2ft
Wednesday
High: 58 °F
Light Wind
1ft
Wednesday Night
Low: 50 °F
Light Wind
< 1ft
Thursday
High: 60 °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: 10:04 am AKDT Sep 6, 2026
Forecast Valid: 12pm AKDT Sep 6, 2026-6pm AKDT Sep 12, 2026

View Nearby Observations

Detailed Forecast

Synopsis: A ridge of high pressure remains over the eastern gulf through Sunday night bringing W to NW winds. A weak front moves into the eastern gulf and panhandle from the west Sunday night into Monday. A second stronger front moves across the gulf from the W on Tuesday.

This Afternoon

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

Tonight

Variable winds 5 kt or less. Patchy fog after 10pm. Seas 1 ft or less.

Labor Day

Variable winds 5 kt or less. A slight chance of rain after 4pm. Areas of fog before 10am. Seas 1 ft or less.

Monday Night

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

Tuesday

Variable winds 5 kt or less. Rain. The rain could be heavy at times. Seas around 1 ft.

Tuesday Night

SSE wind 5 to 10 kt. Rain. The rain could be heavy at times. Seas around 2 ft.

Wednesday

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

Wednesday Night

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

Thursday

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