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Juneau, AK Local Forecast Office

Petersburg AK

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers, mainly between 10pm and 4am.  Areas of fog after 1am.  Seas 1 ft or less.

      Low: 49 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. A chance of showers, mainly after 10am.  Patchy fog before 10am.  Seas 1 ft or less.

      High: 59 °F

      Light Wind
      < 1ft

    • Wednesday Night

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

      Low: 49 °F

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. A chance of showers between 10am and 4pm.   Seas 1 ft or less.

      High: 59 °F

      Light Wind
      < 1ft

    • Thursday Night

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

      Low: 49 °F

      Light Wind
      < 1ft

    • Juneteenth

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

      High: 63 °F

      Light Wind
      < 1ft

    • Friday Night

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

      Low: 52 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 67 °F

      Light Wind
      < 1ft

    • Saturday Night

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

      Low: 54 °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: 3:38 pm AKDT Jun 16, 2026
Forecast Valid: 6pm AKDT Jun 16, 2026-6pm AKDT Jun 23, 2026

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Detailed Forecast


Synopsis: Onshore flow and shower potential continue through the beginning of the week. Weak high pressure begins to build over the Gulf on Thursday, influencing overall calm conditions.

Tonight
Variable winds 5 kt or less. A chance of showers, mainly between 10pm and 4am. Areas of fog after 1am. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. A chance of showers, mainly after 10am. Patchy fog before 10am. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A slight chance of showers. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. A chance of showers between 10am and 4pm. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Juneteenth
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Mostly clear. 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: 3:38 pm AKDT Jun 16, 2026
Forecast Valid: 6pm AKDT Jun 16, 2026-6pm AKDT Jun 23, 2026
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