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

ALERT: WINTER STORM WATCH NOW IN EFFECT FOR LATE SUNDAY THROUGH TUESDAY ACROSS THE NORTHERN TWO THIRDS OF SOUTHEAST ALASKA.

More heavy snow is possible for parts of Southeast Alaska by Monday as another strong front enters the region. Now is the time to complete any snow removal mitigation efforts to protect property ahead of the next snow storm. Stay tuned to Weather.Gov/Juneau for the latest updates on this developing weather situation. Read More >

Hazardous Weather Conditions

Current conditions at

Petersburg (PAPG)

Lat: 56.8°NLon: 132.95°WElev: 71ft.

Overcast

22°F

-6°C

Humidity 89%
Wind Speed NW 3 mph
Barometer 29.46 in (998.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 3 Jan 7:56 pm AKST
Extended Forecast for

Petersburg AK

Winter Storm Watch January 5, 12:00am until January 7, 03:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. North wind around 5 mph becoming calm.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a steady temperature around 19. Calm wind.

    High: 19 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 17. Calm wind becoming east around 5 mph after midnight.

    Low: 17 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: Snow. High near 28. East wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 100%.

    High: 28 °F

    Snow

  • Monday Night

    Monday Night: Rain and snow. Low around 26. Southeast wind 5 to 10 mph. Chance of precipitation is 100%.

    Low: 26 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow showers. High near 35. Chance of precipitation is 100%.

    High: 35 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow showers. Low around 31. Chance of precipitation is 100%.

    Low: 31 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers, becoming all snow after 9am. Cloudy, with a high near 33.

    High: 33 °F

    Rain/Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow showers before 3am, then rain and snow showers likely. Cloudy, with a low around 23.

    Low: 23 °F

    Snow Showers
    then
    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 18. North wind around 5 mph becoming calm.
Sunday
Partly sunny, with a steady temperature around 19. Calm wind.
Sunday Night
A 30 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 17. Calm wind becoming east around 5 mph after midnight.
Monday
Snow. High near 28. East wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 100%.
Monday Night
Rain and snow. Low around 26. Southeast wind 5 to 10 mph. Chance of precipitation is 100%.
Tuesday
Rain and snow showers. High near 35. Chance of precipitation is 100%.
Tuesday Night
Rain and snow showers. Low around 31. Chance of precipitation is 100%.
Wednesday
Rain and snow showers, becoming all snow after 9am. Cloudy, with a high near 33.
Wednesday Night
Snow showers before 3am, then rain and snow showers likely. Cloudy, with a low around 23.
Thursday
Rain and snow showers likely, becoming all snow after 9am. Cloudy, with a high near 29.
Thursday Night
Snow. Cloudy, with a low around 28.
Friday
Rain. Cloudy, with a high near 36.
Friday Night
Rain. Cloudy, with a low around 32.
Saturday
Rain. Cloudy, with a high near 39.
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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:
3:25 pm AKST Jan 3, 2026
Forecast Valid:
8pm AKST Jan 3, 2026-6pm AKST Jan 10, 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