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

Strong north to northeasterly outflow winds peaking Sunday.

Widespread strong, northerly and cold outflow winds with freezing spray over the marine areas expected through Sunday for the northern 2/3rds of the Alaska Panhandle. High winds for Downtown Juneau and Douglas. See our latest forecast discussion for more information. Read More >

Current conditions at

Petersburg (PAPG)

Lat: 56.8°NLon: 132.95°WElev: 71ft.

Fair

29°F

-2°C

Humidity 72%
Wind Speed Calm
Barometer 29.98 in (1015.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 22 Feb 10:56 am AKST
Extended Forecast for

Petersburg AK

  • Today

    Today: Mostly sunny, with a high near 26. Southwest wind around 5 mph becoming northeast in the afternoon.

    High: 26 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 14. Northeast wind around 5 mph becoming southwest after midnight.

    Low: 14 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 29. Southwest wind around 5 mph becoming northeast in the morning.

    High: 29 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow likely after 3am. Mostly cloudy, with a low around 25. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 25 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow before 9am, then rain and snow. High near 36. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 100%.

    High: 36 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow. Low around 30. Chance of precipitation is 100%.

    Low: 30 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow. High near 38. Chance of precipitation is 100%.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 9pm. Cloudy, with a low around 25.

    Low: 25 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow likely, mainly before 3pm. Mostly cloudy, with a high near 31.

    High: 31 °F

    Snow Likely

Detailed Forecast

Today
Mostly sunny, with a high near 26. Southwest wind around 5 mph becoming northeast in the afternoon.
Tonight
Mostly clear, with a low around 14. Northeast wind around 5 mph becoming southwest after midnight.
Monday
Partly sunny, with a high near 29. Southwest wind around 5 mph becoming northeast in the morning.
Monday Night
Snow likely after 3am. Mostly cloudy, with a low around 25. East wind around 5 mph becoming calm. Chance of precipitation is 60%.
Tuesday
Snow before 9am, then rain and snow. High near 36. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 100%.
Tuesday Night
Rain and snow. Low around 30. Chance of precipitation is 100%.
Wednesday
Rain and snow. High near 38. Chance of precipitation is 100%.
Wednesday Night
Rain and snow, becoming all snow after 9pm. Cloudy, with a low around 25.
Thursday
Snow likely, mainly before 3pm. Mostly cloudy, with a high near 31.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 18.
Friday
A chance of snow. Partly sunny, with a high near 29.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18.
Saturday
A chance of snow. Mostly cloudy, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petersburg AK
 56.81°N 132.95°W (Elev. 121 ft)
Last Update:
5:43 am AKST Feb 22, 2026
Forecast Valid:
11am AKST Feb 22, 2026-6pm AKST Feb 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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