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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

      High: 64 °F

      Light Wind
      < 1ft

    • Tonight

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

      Low: 44 °F

      Light Wind
      < 1ft

    • Sunday

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

      High: 62 °F

      Light Wind
      1ft

    • Sunday Night

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

      Low: 48 °F

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

      High: 62 °F

      Light Wind
      < 1ft

    • Monday Night

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

      Low: 48 °F

      Light Wind
      < 1ft

    • Tuesday

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

      High: 60 °F

      Light Wind
      < 1ft

    • Tuesday Night

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

      Low: 48 °F

      Light Wind
      < 1ft

    • Wednesday

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

      High: 57 °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: 10:07 am AKDT Sep 12, 2026
Forecast Valid: 2pm AKDT Sep 12, 2026-6pm AKDT Sep 18, 2026

View Nearby Observations

Detailed Forecast


Synopsis: Strong northerly winds slowly diminishing through this evening. Sea breezes are anticipated over the weekend. High pressure remains over the Gulf into the middle of next week.

This Afternoon
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
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.
Monday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.


*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 56.82°N 133°W
Last Update: 10:07 am AKDT Sep 12, 2026
Forecast Valid: 2pm AKDT Sep 12, 2026-6pm AKDT Sep 18, 2026
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