Delaware City, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delaware City, a city in New Castle County, Delaware.
Today
84°F
Partly Sunny
Partly sunny, with a high near 84. East wind around 5 mph.
7-day forecast for Delaware City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny | 5 mph E | 0% |
| Tonight | 70°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 15% |
| Wednesday | 83°F | Showers And Thunderstorms | 5 mph SE | 75% |
| Wednesday Night | 74°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph S | 59% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 19% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 29% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 mph SW | 44% |
| Saturday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 18% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 18% |
| Monday | 88°F | Sunny | 5 to 10 mph W | 11% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 5 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Delaware City (39.574, -75.595). Updated through the day.
Growing snapshot for Delaware City
Last spring frost
Apr 7
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7b
More local growing data for Delaware City: nearby ZIP 19706 weather · frost dates · planting calendar · Delaware frost dates
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Climate data from the nearest NOAA station, Wilmington New Castle Co Ap, De (6.8 mi from Delaware City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.