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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. A chance of showers, mainly before 4pm.   Seas around 1 ft.

      High: 62 °F

      Light Wind
      1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. A slight chance of showers before 7pm.  Areas of fog after 10pm.  Seas 1 ft or less.

      Low: 47 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Areas of fog before 10am.  Seas 1 ft or less.

      High: 65 °F

      Light Wind
      < 1ft

    • Wednesday Night

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

      Low: 52 °F

      Light Wind
      < 1ft

    • Thursday

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

      High: 60 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. A chance of showers.  Areas of fog after 4am.  Seas 1 ft or less.

      Low: 50 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Areas of fog before 10am.  Seas 1 ft or less.

      High: 62 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A chance of rain.   Seas 1 ft or less.

      Low: 50 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 56 °F

      SE 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:43 am AKDT Aug 25, 2026
Forecast Valid: 12pm AKDT Aug 25, 2026-6pm AKDT Aug 31, 2026

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Detailed Forecast


Synopsis: High pressure over the panhandle is expected to bring light and variable winds through midday today. In the north, sea breezes will develop. A weak front will move across the area late Wednesday, bringing an increase in wind speeds and building seas.

This Afternoon
Variable winds 5 kt or less. A chance of showers, mainly before 4pm. Seas around 1 ft.
Tonight
Variable winds 5 kt or less. A slight chance of showers before 7pm. Areas of fog after 10pm. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Areas of fog before 10am. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A chance of showers after 1am. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. A chance of showers. Areas of fog after 4am. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. Areas of fog before 10am. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. A chance of rain. Seas 1 ft or less.
Saturday
SE wind 5 to 10 kt. Rain. Seas 1 to 2 ft.

*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: 10:43 am AKDT Aug 25, 2026
Forecast Valid: 12pm AKDT Aug 25, 2026-6pm AKDT Aug 31, 2026
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