National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Petersburg (PAPG)

Lat: 56.8°NLon: 132.95°WElev: 71ft.

Light Rain Fog/Mist

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 30.26 in (1025.0 mb)
Dewpoint 54°F (12°C)
Visibility 3.00 mi
Last update 8 Sep 6:56 am AKDT
Extended Forecast for

Petersburg AK

  • Today

    Today: Rain. The rain could be heavy at times. High near 57. South wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Heavy Rain

  • Tonight

    Tonight: Rain. The rain could be heavy at times. Low around 52. Southeast wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 52 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain. High near 59. Southeast wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 7pm. Areas of fog after 10pm. Otherwise, mostly cloudy, with a low around 49. Calm wind. Chance of precipitation is 60%.

    Low: 49 °F

    Rain Likely
    and Areas Fog
    then Chance
    Rain and
    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 60. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 60 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Rain. The rain could be heavy at times. High near 57. South wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain. The rain could be heavy at times. Low around 52. Southeast wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain. High near 59. Southeast wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely, mainly before 7pm. Areas of fog after 10pm. Otherwise, mostly cloudy, with a low around 49. Calm wind. Chance of precipitation is 60%.
Thursday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 60. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petersburg AK
 56.81°N 132.95°W (Elev. 121 ft)
Last Update:
6:49 am AKDT Sep 8, 2026
Forecast Valid:
7am AKDT Sep 8, 2026-6pm AKDT Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation