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.

Fair

23°F

-5°C

Humidity 96%
Wind Speed SW 3 mph
Barometer 30.34 in (1027.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 22 Jan 6:56 pm AKST
Extended Forecast for

Petersburg AK

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 34. Calm wind.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy freezing fog between midnight and 3am. Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy
    then Patchy
    Freezing Fog

  • Saturday

    Saturday: Widespread frost. Otherwise, mostly sunny, with a high near 35. Calm wind.

    High: 35 °F

    Frost

  • Saturday Night

    Saturday Night: A chance of flurries between 9pm and 3am. Widespread frost before 9pm. Otherwise, mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Chance
    Flurries

  • Sunday

    Sunday: A 40 percent chance of snow after 9am. Patchy fog before noon. Otherwise, mostly sunny, with a high near 33.

    High: 33 °F

    Chance Snow
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Snow likely, mainly after 9pm. Patchy dense fog. Otherwise, mostly cloudy, with a low around 26. Chance of precipitation is 70%.

    Low: 26 °F

    Snow Likely
    and Patchy
    Dense Fog

  • Monday

    Monday: Snow likely before 9am, then rain and snow between 9am and 3pm, then rain after 3pm. Areas of fog before noon, then patchy fog after 3pm. Otherwise, cloudy, with a high near 36.

    High: 36 °F

    Rain/Snow and
    Areas Fog

  • Monday Night

    Monday Night: Rain. Areas of fog before 3am. Otherwise, cloudy, with a low around 33.

    Low: 33 °F

    Rain and
    Areas Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 21. Calm wind.
Friday
Mostly sunny, with a high near 34. Calm wind.
Friday Night
Patchy freezing fog between midnight and 3am. Mostly cloudy, with a low around 24. Calm wind.
Saturday
Widespread frost. Otherwise, mostly sunny, with a high near 35. Calm wind.
Saturday Night
A chance of flurries between 9pm and 3am. Widespread frost before 9pm. Otherwise, mostly clear, with a low around 24. Calm wind.
Sunday
A 40 percent chance of snow after 9am. Patchy fog before noon. Otherwise, mostly sunny, with a high near 33.
Sunday Night
Snow likely, mainly after 9pm. Patchy dense fog. Otherwise, mostly cloudy, with a low around 26. Chance of precipitation is 70%.
Monday
Snow likely before 9am, then rain and snow between 9am and 3pm, then rain after 3pm. Areas of fog before noon, then patchy fog after 3pm. Otherwise, cloudy, with a high near 36.
Monday Night
Rain. Areas of fog before 3am. Otherwise, cloudy, with a low around 33.
Tuesday
Rain. Cloudy, with a high near 40.
Tuesday Night
Rain likely. Cloudy, with a low around 34.
Wednesday
Rain. Cloudy, with a high near 41.
Wednesday Night
Rain. Cloudy, with a low around 34.
Thursday
Rain and snow. Cloudy, with a high near 41.
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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:
6:42 pm AKST Jan 22, 2026
Forecast Valid:
7pm AKST Jan 22, 2026-6pm AKST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation