Petersburg, AK Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Jul 28 		Rain
Close Hourly 		59º / 52º 67% E 5 mph 87%
5am Mostly Cloudy 50º 10% SSE 3 mph 93%
6am Mostly Cloudy 52º 16% SW 3 mph 91%
7am Few Showers 53º 33% E 3 mph 89%
8am Showers 53º 57% ENE 2 mph 89%
9am Light Rain 54º 67% ENE 3 mph 89%
10am Showers 55º 65% ENE 4 mph 88%
11am Cloudy 55º 24% ENE 4 mph 88%
12pm Few Showers 55º 34% E 4 mph 89%
1pm Cloudy 56º 24% ENE 4 mph 85%
2pm Showers 57º 35% E 5 mph 83%
3pm Few Showers 57º 32% E 5 mph 81%
4pm Cloudy 58º 24% E 5 mph 77%
5pm Cloudy 58º 21% ESE 4 mph 76%
6pm Cloudy 58º 24% ESE 5 mph 77%
7pm Showers 56º 48% ESE 4 mph 82%
8pm Showers 56º 59% ESE 4 mph 86%
9pm Light Rain 55º 60% ESE 3 mph 87%
10pm Showers 54º 56% ESE 2 mph 91%
11pm Rain 53º 87% SE 3 mph 96%
Wed
Jul 29 		Rain
View Hourly 		59º / 47º 88% ESE 7 mph 87%
12am Rain 53º 83% SE 3 mph 94%
1am Rain 53º 77% SE 3 mph 95%
2am Rain 53º 79% SE 3 mph 97%
3am Rain 53º 85% SE 3 mph 98%
4am Rain 53º 86% SE 3 mph 98%
5am Light Rain 53º 67% SE 2 mph 99%
6am Light Rain 53º 68% SSE 3 mph 100%
7am Rain 53º 83% ESE 4 mph 98%
8am Rain 54º 88% ESE 4 mph 96%
9am Rain 55º 86% E 5 mph 93%
10am Light Rain 55º 79% ESE 6 mph 91%
11am Light Rain 56º 69% E 6 mph 90%
12pm Showers 56º 57% E 5 mph 90%
1pm Showers 57º 56% E 5 mph 88%
2pm Showers 57º 58% ESE 6 mph 84%
3pm Light Rain 58º 62% E 6 mph 81%
4pm Showers 59º 51% ESE 5 mph 77%
5pm Showers 58º 36% ESE 5 mph 78%
6pm Few Showers 58º 30% ESE 5 mph 77%
7pm Showers 57º 35% ESE 4 mph 81%
8pm Cloudy 56º 15% ESE 3 mph 83%
9pm Cloudy 55º 12% ESE 2 mph 85%
10pm Mostly Cloudy 54º 8% ESE 2 mph 87%
11pm Mostly Cloudy 53º 7% SE 2 mph 90%
Thu
Jul 30 		Cloudy
View Hourly 		64º / 53º 22% E 5 mph 70%
12am Mostly Cloudy 52º 7% ESE 1 mph 89%
1am Partly Cloudy 51º 7% ESE 1 mph 90%
2am Partly Cloudy 50º 7% ESE 1 mph 90%
3am Partly Cloudy 50º 7% ENE 1 mph 91%
4am Partly Cloudy 49º 7% NNE 1 mph 93%
Fri
Jul 31 		Showers 62º / 52º 54% E 5 mph 84%
Sat
Aug 1 		Light Rain 60º / 53º 73% E 5 mph 87%
Sun
Aug 2 		Showers 62º / 52º 39% E 5 mph 85%
Mon
Aug 3 		Mostly Cloudy 64º / 52º 20% E 5 mph 78%
Tue
Aug 4 		Few Showers 66º / 54º 35% ENE 5 mph 74%

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

Tuesday
High : 63ºF
Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 4pm. Seas 1 ft or less.
Tuesday Night
Low : 50ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely after 10pm. Seas around 1 ft.
Wednesday
High : 61ºF
Variable winds 5 kt or less. Showers, mainly before 4pm. Seas around 1 ft.
Wednesday Night
Low : 51ºF
Variable winds 5 kt or less. A chance of showers before 10pm. Seas 1 ft or less.
Thursday
High : 66ºF
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Thursday Night
Low : 49ºF
Variable winds 5 kt or less. A chance of showers after 10pm. Seas 1 ft or less.
Friday
High : 65ºF
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Friday Night
Low : 52ºF
Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.
Saturday
High : 63ºF
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

NOAA Buoy Data Near Petersburg, AK See Map

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    Wind Speed Forecast for Petersburg, AK

    TuesdayWednesdayThursday
    Wind Speed (MPH) 334433255521
    1pm5pm9pm1am5am9am1pm5pm9pm1am5am9am
    MPH 334433255521
    DIR SSEENEENEESEESESESEEEESEESEESE

    Current Weather Conditions In Petersburg, AK

    As Of: 23 minutes ago

    • 50ºF
    • 50ºF
    • 3mph
    • 0º (SSE)
    • 3mph
    • Mostly Cloudy
    • 10mi
    • 29.70"
    • 93%
    • 0ºF

    The weather right now in Petersburg, AK is Mostly Cloudy. The current temperature is 50°F, and the expected high and low for today, Tuesday, July 28, 2026, are 59° high temperature and 52°F low temperature. The wind is currently blowing at 3 miles per hour, and coming from the South Southeast. The wind is gusting to 3 mph. With the wind and the atmosphere the temperature feels like 50° Fahrenheit. Expected precipitation is 10 percent, with current humidity at 93 percent, and air pressure at 29.7 in. Visibility is 10 nautical miles. There are no current weather alert(s).