Harman US

Donnelsville, OH Weather & Growing Conditions

Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. East wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 60°F Mostly Cloudy 6 mph E 0%
Saturday 84°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 7 mph SE 65%
Saturday Night 67°F Chance Showers And Thunderstorms 6 mph S 59%
Sunday 84°F Chance Showers And Thunderstorms 5 to 9 mph W 43%
Sunday Night 58°F Showers And Thunderstorms Likely 12 to 15 mph NE 61%
Monday 70°F Rain Showers Likely 15 mph NE 59%
Monday Night 54°F Chance Rain Showers 12 to 17 mph NE 39%
Tuesday 70°F Slight Chance Rain Showers 14 mph NE 21%
Tuesday Night 57°F Chance Rain Showers 12 to 15 mph NE 46%
Wednesday 70°F Chance Rain Showers 13 mph E 54%
Wednesday Night 56°F Chance Showers And Thunderstorms 7 to 14 mph NE 54%
Thursday 71°F Slight Chance Rain Showers then Mostly Cloudy 9 mph NE 16%
Thursday Night 54°F Mostly Cloudy 6 to 10 mph NE 12%
Friday 72°F Mostly Sunny 6 to 12 mph NE 9%

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

Growing snapshot for Donnelsville, OH

Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, New Carlisle, Oh (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.