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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:Variable winds 5 kt or less. Showers, mainly before 4pm.  Patchy fog before 10am.  Seas around 1 ft.

      High: 61 °F

      Light Wind
      1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of showers, mainly before 7pm.  Patchy fog after 1am.  Seas around 1 ft.

      Low: 51 °F

      Light Wind
      1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Patchy fog before 7am.  Seas 1 ft or less.

      High: 66 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. A chance of showers after 10pm.   Seas 1 ft or less.

      Low: 50 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Showers likely, mainly after 10am.   Seas 1 ft or less.

      High: 63 °F

      Light Wind
      < 1ft

    • Friday Night

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

      Low: 53 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 62 °F

      Light Wind
      < 1ft

    • Saturday Night

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

      Low: 52 °F

      Light Wind
      < 1ft

    • Sunday

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

      High: 63 °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: 3:35 am AKDT Jul 29, 2026
Forecast Valid: 3am AKDT Jul 29, 2026-6pm AKDT Aug 4, 2026

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Detailed Forecast


Synopsis: Wednesday, a stronger low sets up southwest of Haida Gwaii, bringing moderate to fresh breezes into Clarence Strait and coastal waters near Prince of Wales. Thursday winds continue to increase for the south, with fresh breezes to near gale force conditions for coastal locations south of Cape Decision.

Wednesday
Variable winds 5 kt or less. Showers, mainly before 4pm. Patchy fog before 10am. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. A chance of showers, mainly before 7pm. Patchy fog after 1am. Seas around 1 ft.
Thursday
Variable winds 5 kt or less. Patchy fog before 7am. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. A chance of showers after 10pm. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. Showers likely, mainly after 10am. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Cloudy. 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: 3:35 am AKDT Jul 29, 2026
Forecast Valid: 3am AKDT Jul 29, 2026-6pm AKDT Aug 4, 2026
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