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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 39 °F
Light Wind
1ft
Tonight
Low: 27 °F
Light Wind
1ft
Friday
High: 39 °F
Light Wind
1ft
Friday Night
Low: 28 °F
Light Wind
1ft
Saturday
High: 40 °F
Light Wind
< 1ft
Saturday Night
Low: 25 °F
Light Wind
< 1ft
Sunday
High: 40 °F
Light Wind
< 1ft
Sunday Night
Low: 25 °F
Light Wind
< 1ft
Monday
High: 40 °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: 9:46 am AKDT Mar 26, 2026
Forecast Valid: 3pm AKDT Mar 26, 2026-6pm AKDT Apr 1, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

Synopsis: Multiple areas of low pressure rotate over the SE Gulf. Snow showers linger over the southern Gulf and the southern inner channels. Northerly and easterly outflow continues across the northern inner channels and out through ocean entrances, with near gale to gale force winds.

This Afternoon

Variable winds 5 kt or less. Scattered snow showers. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Snow showers likely, mainly after 7pm. Seas around 1 ft.

Friday

Variable winds 5 kt or less. A chance of snow before 1pm, then a chance of rain and snow. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. A chance of rain and snow before 10pm, then a chance of snow. Seas around 1 ft.

Saturday

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

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Sunday

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

Sunday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Mostly sunny. 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.