Nearby Harbors
56.8150’ N, 132.9570’ W

Petersburg, AK

48°
H -°
L 46°
SE
4mph
High tide
2:02 am
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Petersburg, AK Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sat
Sep 26 		Rain -º / 46º 100% SE 6 mph 97%
Sun
Sep 27 		Rain
View Hourly 		51º / 45º 100% SE 11 mph 97%
1am Rain 48º 96% SE 4 mph 95%
2am Rain 48º 100% SE 6 mph 94%
3am Rain 48º 100% SE 6 mph 96%
4am Rain 48º 100% SE 6 mph 98%
5am Rain 48º 100% SE 6 mph 98%
6am Rain 49º 100% SE 6 mph 97%
7am Rain 49º 100% SE 8 mph 97%
8am Rain 49º 99% SE 7 mph 98%
9am Rain 49º 100% SE 7 mph 99%
10am Rain 50º 100% SE 8 mph 97%
11am Rain 50º 100% ESE 7 mph 98%
12pm Rain 50º 100% SE 9 mph 97%
1pm Rain 51º 98% SE 9 mph 96%
2pm Rain 51º 100% SE 10 mph 96%
3pm Rain 51º 100% ESE 10 mph 96%
4pm Rain 51º 100% SE 10 mph 96%
5pm Rain 51º 100% SE 11 mph 93%
6pm Rain 51º 100% SE 9 mph 95%
7pm Rain 50º 97% SE 7 mph 98%
8pm Rain 51º 83% SSE 6 mph 96%
9pm Rain 51º 65% SSE 5 mph 96%
10pm Showers 51º 51% SE 4 mph 96%
11pm Showers 50º 36% SSE 3 mph 96%
Mon
Sep 28 		Light Rain
View Hourly 		51º / 45º 77% SE 6 mph 93%
12am Few Showers 50º 30% SSE 3 mph 95%
1am Cloudy 49º 24% S 3 mph 97%
2am Cloudy 48º 21% S 3 mph 95%
3am Cloudy 48º 22% S 2 mph 96%
4am Showers 46º 52% S 2 mph 98%
5am Showers 46º 49% SSE 2 mph 98%
6am Showers 46º 47% S 2 mph 98%
7am Showers 46º 54% SSE 2 mph 99%
8am Showers 47º 51% SSE 3 mph 98%
9am Showers 48º 41% SE 3 mph 98%
10am Light Rain 48º 60% SE 4 mph 95%
11am Rain 49º 77% ESE 4 mph 95%
12pm Light Rain 50º 62% SE 6 mph 91%
1pm Light Rain 50º 63% SE 6 mph 90%
2pm Light Rain 50º 76% SE 6 mph 90%
3pm Rain 50º 70% SE 4 mph 90%
4pm Showers 50º 53% SE 4 mph 90%
5pm Light Rain 50º 67% ESE 4 mph 90%
6pm Showers 49º 49% SE 3 mph 93%
7pm Showers 47º 59% SE 3 mph 96%
8pm Showers 47º 46% SE 2 mph 95%
9pm Showers 47º 38% SE 2 mph 95%
10pm Showers 46º 40% SE 2 mph 95%
11pm Light Rain 46º 63% SSE 3 mph 95%
Tue
Sep 29 		Rain
View Hourly 		49º / 45º 87% ESE 7 mph 94%
12am Rain 46º 66% SE 3 mph 96%
Wed
Sep 30 		Light Rain 50º / 43º 72% ESE 6 mph 93%
Thu
Oct 1 		Showers 50º / 40º 53% ESE 5 mph 87%
Fri
Oct 2 		Showers 52º / 45º 54% E 4 mph 87%
Sat
Oct 3 		Rain 49º / 46º 72% ESE 8 mph 93%

Weather Radar for Petersburg, AK See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Petersburg, AK

Tonight
Low : 44ºF
SE wind around 10 kt. Rain. Seas around 3 ft.
Sunday
High : 53ºF
SSE wind 10 to 15 kt. Rain. The rain could be heavy at times. Seas around 3 ft.
Sunday Night
Low : 45ºF
SE wind 5 to 15 kt. Rain. The rain could be heavy at times. Seas 2 to 3 ft.
Monday
High : 53ºF
Variable winds 5 kt or less. Rain. Seas 1 to 2 ft.
Monday Night
Low : 43ºF
Variable winds 5 kt or less. Rain. Seas around 2 ft.
Tuesday
High : 52ºF
SE wind 5 to 10 kt. Showers. Seas around 2 ft.
Tuesday Night
Low : 41ºF
Variable winds 5 kt or less. Showers. Seas around 2 ft.
Wednesday
High : 54ºF
Variable winds 5 kt or less. Showers. Seas 1 to 2 ft.
Wednesday Night
Low : 42ºF
Variable winds 5 kt or less. Showers likely. Seas around 1 ft.

NOAA Buoy Data Near Petersburg, AK See Map

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    Wind Speed Forecast for Petersburg, AK

    SundayMondayTuesday
    Wind Speed (MPH) 4679115323642
    9am1pm5pm9pm1am5am9am1pm5pm9pm1am5am
    MPH 4679115323642
    DIR SESESESESESSESSSESESEESESE

    Current Weather Conditions In Petersburg, AK

    As Of: 17 minutes ago

    • 48ºF
    • 47ºF
    • 4mph
    • 0º (SE)
    • 4mph
    • Rain
    • 3mi
    • 29.90"
    • 95%
    • 0ºF

    The weather right now in Petersburg, AK is Rain. The current temperature is 48°F, and the expected high and low for today, Sunday, September 27, 2026, are -° high temperature and 46°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the Southeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 47° Fahrenheit. Expected precipitation is 96 percent, with current humidity at 95 percent, and air pressure at 29.9 in. Visibility is 3 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 9:57pm Sat Sep 26 2026

    ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM TO 6 PM AKDT SUNDAY...

    WHAT: South winds 20 to 25 kt with gusts up to 35 kt expected.

    WHERE: Frederick Sound.

    WHEN: From 4 PM to 6 PM AKDT Sunday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&

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