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

Wednesday 12:00 PM: Mendenhall Basin Releasing

The Mendenhall Lake has crested and is falling. The crest occurred at 7:15am with a crest of 16.65ft. Read More >

Current conditions at

Petersburg (PAPG)

Lat: 56.8°NLon: 132.95°WElev: 71ft.

A Few Clouds

59°F

15°C

Humidity 83%
Wind Speed E 6 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 Aug 11:56 am AKDT
Extended Forecast for

Petersburg AK

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 68. Calm wind becoming west around 5 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain between 10am and 1pm. Cloudy, with a high near 66. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Cloudy, with a low around 53. Southeast wind around 5 mph becoming calm.

    Low: 53 °F

    Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 1pm. Cloudy, with a high near 64. Northeast wind around 5 mph.

    High: 64 °F

    Cloudy then
    Chance Rain

  • Friday Night

    Friday Night: Rain likely. Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 10pm. Cloudy, with a low around 52.

    Low: 52 °F

    Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 68. Calm wind becoming west around 5 mph.
Tonight
Mostly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.
Thursday
A slight chance of rain between 10am and 1pm. Cloudy, with a high near 66. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.
Thursday Night
Cloudy, with a low around 53. Southeast wind around 5 mph becoming calm.
Friday
A 30 percent chance of rain after 1pm. Cloudy, with a high near 64. Northeast wind around 5 mph.
Friday Night
Rain likely. Cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
Rain. High near 63. Chance of precipitation is 90%.
Saturday Night
Rain, mainly before 10pm. Cloudy, with a low around 52.
Sunday
A chance of rain. Mostly cloudy, with a high near 63.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 50.
Monday
A chance of rain. Partly sunny, with a high near 64.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petersburg AK
 56.81°N 132.95°W (Elev. 121 ft)
Last Update:
4:02 am AKDT Aug 13, 2025
Forecast Valid:
12pm AKDT Aug 13, 2025-6pm AKDT Aug 19, 2025
 
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