Harman US

Petersburg, OH Weather & Growing Conditions

Overnight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. Northeast wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 56°F Partly Cloudy 3 mph NE 1%
Saturday 76°F Partly Sunny then Slight Chance Rain Showers 5 mph E 15%
Saturday Night 63°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 6 mph SE 74%
Sunday 75°F Showers And Thunderstorms 7 mph SW 92%
Sunday Night 57°F Showers And Thunderstorms 8 mph N 82%
Monday 68°F Slight Chance Rain Showers 9 mph NE 23%
Monday Night 55°F Chance Rain Showers 9 mph NE 52%
Tuesday 65°F Showers And Thunderstorms Likely 8 to 12 mph E 55%
Tuesday Night 54°F Showers And Thunderstorms Likely 13 to 16 mph E 62%
Wednesday 63°F Rain Showers Likely 15 mph E 62%
Wednesday Night 52°F Chance Showers And Thunderstorms 9 to 15 mph E 54%
Thursday 64°F Chance Rain Showers 10 mph E 43%
Thursday Night 52°F Slight Chance Rain Showers 5 to 8 mph E 17%
Friday 68°F Slight Chance Rain Showers 5 to 8 mph NE 16%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Petersburg, OH

Last spring frost
Apr 30
First fall frost
Oct 23
Growing season
175 days
Hardiness zone
6a

Explore more for Petersburg, OH: full frost dates · planting calendar · Ohio frost dates

Climate data from the nearest NOAA station, New Castle 1 N, Pa (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.