Weather in Petersburg, NY
Updated 2026-09-26 11:15 local time · ZIP codes 12138
Light drizzle
No government weather alerts were returned for this location at the latest update.
Next hours
50°66% rain51°66% rain51°50% rain51°68% rain
51°71% rain
52°44% rain51°71% rain
52°31% rain
52°34% rain
52°56% rain53°35% rain
52°77% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 77% over the next 12 hours.
It feels like 45°F with winds near 12 mph.
52°F, 31% rain chance and 11 mph wind.
Visibility is around 1 mi; gusts may reach 37 mph.
Current temperature is 50°F, wind 12 mph, rain chance up to 77%.
UV index is 2.
Local weather characteristics in Petersburg
New York spans Atlantic coastal, inland valley, Great Lakes and mountain climates. Lake-effect snow, coastal storms and large upstate/downstate temperature differences are all common.
Petersburg is part of the Northeast weather region. The forecast point is near 42.75°N latitude and 73.34°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
Light drizzle and 50°F in Petersburg, NY. Today's high is 56°F with a 84% rain chance. Winds are around 12 mph with gusts near 34 mph. Relative humidity is 92%, pressure is 30.01 inHg, and visibility is about 1 miles.
Tonight and tomorrow in Petersburg
Sunrise is at 06:45 AM and sunset is at 06:44 PM. Tomorrow's forecast calls for Light rain shower with a high near 53°F and a low near 50°F. The maximum rain chance is 93%.