Greenville, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a community in New Castle County, Delaware.
This Afternoon
82°F
Mostly Sunny
Mostly sunny, with a high near 82. North wind around 10 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 60°F | Partly Cloudy | 5 to 10 mph N | 1% |
| Saturday | 75°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Saturday Night | 63°F | Mostly Cloudy then Patchy Fog | 5 to 10 mph E | 14% |
| Sunday | 77°F | Rain Showers Likely | 5 to 10 mph S | 73% |
| Sunday Night | 62°F | Patchy Fog | 5 to 10 mph W | 83% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 43% |
| Monday Night | 57°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 37% |
| Tuesday Night | 54°F | Chance Rain Showers | 10 mph NE | 37% |
| Wednesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 10 mph NE | 37% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 35% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 33% |
Forecast source: National Weather Service (api.weather.gov) for Greenville (39.775, -75.604). Updated through the day.
Growing snapshot for Greenville
Last spring frost
Apr 7
First fall frost
Nov 4
Growing season
209 days
Hardiness zone
7b
More local growing data for Greenville: nearby ZIP 19807 weather · frost dates · planting calendar · Delaware frost dates
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Climate data from the nearest NOAA station, Wilmington Porter Rsch, De (4.1 mi from Greenville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.