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.
This Afternoon
71°F
Partly Sunny
Partly sunny, with a high near 71. South wind around 5 mph.
7-day forecast for Delaware City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Partly Sunny | 5 mph S | 2% |
| Tonight | 51°F | Partly Cloudy | 0 to 5 mph S | 3% |
| Wednesday | 74°F | Patchy Fog then Partly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 59°F | Mostly Cloudy | 5 mph S | 3% |
| Thursday | 74°F | Chance Light Rain | 5 to 10 mph S | 33% |
| Thursday Night | 62°F | Chance Light Rain then Chance T-storms | 5 mph S | 74% |
| Friday | 71°F | Light Rain | 5 mph SW | 79% |
| Friday Night | 57°F | Light Rain | 5 mph W | 79% |
| Saturday | 67°F | Chance Light Rain | 5 mph NW | 25% |
| Saturday Night | 49°F | Slight Chance Light Rain then Partly Cloudy | 5 to 10 mph NW | 17% |
| Sunday | 62°F | Mostly Sunny | 5 mph NW | 8% |
| Sunday Night | 48°F | Slight Chance Light Rain | 5 to 10 mph W | 24% |
| Monday | 59°F | Chance Light Rain | 10 mph NW | 32% |
| Monday Night | 45°F | Chance Light Rain | 10 to 15 mph NW | 30% |
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 Nov 3, 2026.