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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. Patchy fog before 3pm. Patchy freezing fog after 3pm.  Seas 1 ft or less.

      High: 33 °F

      Light Wind
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Patchy freezing fog after 9pm.  Seas 1 ft or less.

      Low: 24 °F

      Light Wind
      < 1ft

    • Thursday

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

      High: 36 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Low: 24 °F

      Light Wind
      < 1ft

    • Friday

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

      High: 35 °F

      Light Wind
      < 1ft

    • Friday Night

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

      Low: 27 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 36 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A chance of snow.   Seas 1 ft or less.

      Low: 27 °F

      Light Wind
      < 1ft

    • Sunday

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

      High: 36 °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: 10:06 am AKST Jan 21, 2026
Forecast Valid: 2pm AKST Jan 21, 2026-6pm AKST Jan 27, 2026

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Detailed Forecast


Synopsis: High pressure remains over the panhandle and eastern Gulf of Alaska through mid week, with fairly benign winds and seas. Main impact will continue to be fog through Thursday. The northern inner channels will see northerly and easterly outflow winds. Winds and seas will begin to increase by later in the as the ridge breaks down and a low moves into the Gulf.

This Afternoon
Variable winds 5 kt or less. Patchy fog before 3pm. Patchy freezing fog after 3pm. Seas 1 ft or less.
Tonight
Variable winds 5 kt or less. Patchy freezing fog after 9pm. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of snow. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. A chance of snow before 9am, then rain 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: 56.81°N 132.95°W
Last Update: 10:06 am AKST Jan 21, 2026
Forecast Valid: 2pm AKST Jan 21, 2026-6pm AKST Jan 27, 2026
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