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
69°F
Mostly Sunny
Mostly sunny, with a high near 69. South wind around 5 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 49°F | Mostly Cloudy | 0 to 5 mph S | 3% |
| Wednesday | 73°F | Patchy Fog then Partly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 57°F | Mostly Cloudy | 5 mph S | 3% |
| Thursday | 72°F | Chance Light Rain | 5 to 10 mph S | 38% |
| Thursday Night | 60°F | Chance Light Rain then Chance T-storms | 5 mph S | 72% |
| Friday | 70°F | Light Rain | 5 mph SW | 77% |
| Friday Night | 53°F | Light Rain | 5 mph W | 77% |
| Saturday | 66°F | Slight Chance Light Rain | 5 mph NW | 24% |
| Saturday Night | 44°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 15% |
| Sunday | 62°F | Mostly Sunny | 5 mph NW | 9% |
| Sunday Night | 43°F | Slight Chance Light Rain | 0 to 5 mph W | 24% |
| Monday | 59°F | Chance Light Rain | 5 to 10 mph NW | 31% |
| Monday Night | 41°F | Chance Light Rain | 5 to 10 mph NW | 31% |
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 Nov 3, 2026.