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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]
    • Columbus Day

      Columbus Day:Variable winds 5 kt or less. Rain, mainly before 10am.   Seas 1 to 2 ft.

      High: 49 °F

      Light Wind
      1-2ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Areas of fog after 10pm.  Seas 1 ft or less.

      Low: 42 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. A chance of rain, mainly after 1pm.   Seas 1 ft or less.

      High: 50 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of rain.  Areas of fog after 10pm.  Seas 1 ft or less.

      Low: 40 °F

      Light Wind
      < 1ft

    • Wednesday

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

      High: 51 °F

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Showers likely, mainly after 1am.   Seas around 1 ft.

      Low: 40 °F

      Light Wind
      1ft

    • Thursday

      Thursday:ESE wind around 10 kt. Showers. The rain could be heavy at times.   Seas around 2 ft.

      High: 51 °F

      ESE 10kt
      2ft

    • Thursday Night

      Thursday Night:ESE wind around 10 kt. Showers. The rain could be heavy at times.   Seas 2 to 3 ft.

      Low: 42 °F

      ESE 10kt
      2-3ft

    • Friday

      Friday:Variable winds 5 kt or less. Showers. The rain could be heavy at times.   Seas around 1 ft.

      High: 51 °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 Oct 12, 2026
Forecast Valid: 3am AKDT Oct 12, 2026-6pm AKDT Oct 18, 2026

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Detailed Forecast


Synopsis: Marine conditions improving Monday as a front dissipates, though northern inner channels remain elevated with moderate breezes. Onshore flow prevails at the start of the week bringing light showers and possible erratic gusts. Winds along southern ocean entrances increase Tuesday as a northward moving low clips the southern panhandle. By Wednesday into Thursday, a stronger low pressure system is expected to impact the area.

Columbus Day
Variable winds 5 kt or less. Rain, mainly before 10am. Seas 1 to 2 ft.
Monday Night
Variable winds 5 kt or less. Areas of fog after 10pm. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. A chance of rain, mainly after 1pm. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. A chance of rain. 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. Showers likely, mainly after 1am. Seas around 1 ft.
Thursday
ESE wind around 10 kt. Showers. The rain could be heavy at times. Seas around 2 ft.
Thursday Night
ESE wind around 10 kt. Showers. The rain could be heavy at times. Seas 2 to 3 ft.
Friday
Variable winds 5 kt or less. Showers. The rain could be heavy at times. Seas around 1 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: 56.81°N 132.95°W
Last Update: 3:35 am AKDT Oct 12, 2026
Forecast Valid: 3am AKDT Oct 12, 2026-6pm AKDT Oct 18, 2026
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