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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds 5 kt or less. Rain, mainly before 9am.   Seas 1 to 2 ft.

      High: 42 °F

      Light Wind
      1-2ft

    • Tonight

      Tonight:SE wind 10 to 15 kt. Rain. The rain could be heavy at times.   Seas 1 ft building to 4 ft.

      Low: 37 °F

      SE 15kt
      Waves Building4ft

    • Thursday

      Thursday:SSE wind 10 to 15 kt. Rain.   Seas 2 to 4 ft.

      High: 42 °F

      SSE 15kt
      2-4ft

    • Thursday Night

      Thursday Night:S wind 5 to 10 kt. Rain.   Seas 1 to 2 ft.

      Low: 34 °F

      S 10kt
      1-2ft

    • Friday

      Friday:Variable winds 5 kt or less. Rain, mainly before 3pm.   Seas 1 ft or less.

      High: 40 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A chance of rain before 9pm.  Patchy fog between 9pm and 3am.  Seas 1 ft or less.

      Low: 30 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. A chance of snow after 9am, mixing with rain after 3pm.   Seas 1 ft or less.

      High: 38 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Rain and snow, mainly after 9pm.   Seas 1 ft or less.

      Low: 32 °F

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Rain and snow, becoming all rain after 9am.   Seas 1 ft or less.

      High: 39 °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: 6:47 am AKST Feb 11, 2026
Forecast Valid: 7am AKST Feb 11, 2026-6pm AKST Feb 17, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY THIS EVENING THROUGH LATE TONIGHT...

Synopsis: A stronger system moves in Wednesday night increasing winds to storm force for much of our coastal zones. Seas are expected to build 35 to 40 ft along the eastern gulf of Alaska by Thursday.

Today
Variable winds 5 kt or less. Rain, mainly before 9am. Seas 1 to 2 ft.
Tonight
SE wind 10 to 15 kt. Rain. The rain could be heavy at times. Seas 1 ft building to 4 ft.
Thursday
SSE wind 10 to 15 kt. Rain. Seas 2 to 4 ft.
Thursday Night
S wind 5 to 10 kt. Rain. Seas 1 to 2 ft.
Friday
Variable winds 5 kt or less. Rain, mainly before 3pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. A chance of rain before 9pm. Patchy fog between 9pm and 3am. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. A chance of snow after 9am, mixing with rain after 3pm. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Rain and snow, mainly after 9pm. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Rain and snow, becoming all rain after 9am. 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: 6:47 am AKST Feb 11, 2026
Forecast Valid: 7am AKST Feb 11, 2026-6pm AKST Feb 17, 2026
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