Weather in Petersburg, AK
Updated 2026-09-26 07:15 local time · ZIP codes 99833
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
43°21% rain
44°22% rain
44°47% rain44°37% rain44°58% rain
46°68% rain45°67% rain44°84% rain43°75% rain43°76% rain43°71% rain
42°54% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 84% over the next 12 hours.
It feels like 41°F with winds near 3 mph.
43°F, 21% rain chance and 3 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 43°F, wind 3 mph, rain chance up to 84%.
UV index is 0.
Local weather characteristics in Petersburg
Alaska spans Arctic, subarctic and maritime climates, so temperatures and precipitation can differ sharply between the coast, interior and far north.
Petersburg is part of the West weather region. The forecast point is near 56.81°N latitude and 132.96°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Petersburg weather today
Overcast and 43°F in Petersburg, AK. Today's high is 46°F with a 89% rain chance. Winds are around 3 mph with gusts near 4 mph. Relative humidity is 75%, pressure is 30.01 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Petersburg
Sunrise is at 06:45 AM and sunset is at 06:40 PM. Tomorrow's forecast calls for Light rain with a high near 43°F and a low near 41°F. The maximum rain chance is 95%.