Harman US

Donnelsville, OH Weather & Growing Conditions

Tonight
62°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 2am. Mostly cloudy, with a low around 62. Southeast wind 12 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 62°F Mostly Cloudy then Rain Showers Likely 12 to 15 mph SE 72%
Wednesday 69°F Showers And Thunderstorms 15 to 18 mph S 100%
Wednesday Night 51°F Rain Showers Likely 6 to 15 mph SW 69%
Thursday 65°F Mostly Sunny 6 to 14 mph SW 0%
Thursday Night 45°F Partly Cloudy 2 to 8 mph SW 2%
Friday 61°F Partly Sunny 2 to 9 mph NW 11%
Friday Night 39°F Partly Cloudy 6 to 9 mph NW 13%
Saturday 55°F Slight Chance Light Rain 8 mph NW 17%
Saturday Night 34°F Partly Cloudy 1 to 5 mph W 10%
Sunday 57°F Mostly Sunny 2 to 10 mph W 14%
Sunday Night 34°F Partly Cloudy 5 to 10 mph W 14%
Monday 59°F Slight Chance Light Rain 5 to 12 mph W 17%
Monday Night 37°F Mostly Clear 9 mph SW 13%
Tuesday 64°F Sunny 7 to 12 mph W 3%

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 Nov 4, 2026.