Greenville, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a city in Darke County, Ohio.
Tonight
57°F
Partly Cloudy then Patchy Fog
Patchy fog after 4am. Partly cloudy, with a low around 57. East wind 5 to 8 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Partly Cloudy then Patchy Fog | 5 to 8 mph E | 3% |
| Saturday | 80°F | Showers And Thunderstorms Likely | 7 mph SE | 67% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 7 mph S | 71% |
| Sunday | 80°F | Showers And Thunderstorms Likely | 6 to 9 mph W | 59% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 59% |
| Monday | 70°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 59% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 48% |
| Tuesday | 69°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 35% |
| Tuesday Night | 56°F | Chance Rain Showers | 8 to 15 mph NE | 28% |
| Wednesday | 69°F | Slight Chance Rain Showers | 10 mph NE | 21% |
| Wednesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph N | 16% |
| Thursday | 70°F | Partly Sunny | 9 mph N | 10% |
| Thursday Night | 54°F | Mostly Cloudy | 6 to 9 mph N | 10% |
| Friday | 70°F | Partly Sunny | 6 to 10 mph N | 6% |
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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Wayne Lakes
Yorkshire
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 Sep 19, 2026.