Greenville, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a city in Darke County, Ohio.
Today
82°F
Sunny
Sunny, with a high near 82. East wind around 2 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 2 mph E | 0% |
| Tonight | 61°F | Mostly Clear | 1 mph NE | 0% |
| Wednesday | 85°F | Sunny | 0 to 5 mph N | 1% |
| Wednesday Night | 64°F | Mostly Clear | 3 mph SW | 4% |
| Thursday | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 51% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 7 mph SW | 67% |
| Friday | 83°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 8 mph SW | 67% |
| Friday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph SW | 60% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 23% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SW | 23% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 16% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 16% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms | 9 to 13 mph SW | 30% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 9 mph SW | 36% |
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 Aug 4, 2026.