Greenville, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a city in Darke County, Ohio.
This Afternoon
75°F
Sunny
Sunny, with a high near 75. South wind around 15 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 15 mph S | 2% |
| Tonight | 62°F | Mostly Cloudy then Rain Showers Likely | 12 to 16 mph SE | 73% |
| Wednesday | 68°F | Rain Showers | 13 to 18 mph S | 96% |
| Wednesday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 12 mph SW | 18% |
| Thursday | 63°F | Mostly Sunny | 8 to 15 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 to 8 mph SW | 1% |
| Friday | 58°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph NW | 17% |
| Friday Night | 38°F | Slight Chance Light Rain then Mostly Cloudy | 9 mph NW | 17% |
| Saturday | 54°F | Partly Sunny | 9 mph NW | 14% |
| Saturday Night | 34°F | Mostly Cloudy | 2 to 6 mph W | 4% |
| Sunday | 55°F | Mostly Sunny | 3 to 10 mph W | 8% |
| Sunday Night | 35°F | Partly Cloudy | 5 to 8 mph W | 12% |
| Monday | 58°F | Sunny | 5 to 10 mph W | 12% |
| Monday Night | 38°F | Partly Cloudy | 9 mph SW | 11% |
Forecast source: National Weather Service (api.weather.gov) for Greenville (40.105, -84.621). Updated through the day.
Growing snapshot for Greenville
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
180 days
Hardiness zone
6a
More local growing data for Greenville: nearby ZIP 45331 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Greenville Wtp, Oh (0.3 mi from Greenville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.