Middletown, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middletown, a town in New Castle County, Delaware.
Today
79°F
Mostly Sunny
Mostly sunny, with a high near 79. East wind 5 to 10 mph.
7-day forecast for Middletown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Tonight | 63°F | Mostly Cloudy | 5 mph SE | 9% |
| Sunday | 81°F | Slight Chance Rain Showers | 5 to 10 mph S | 20% |
| Sunday Night | 61°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph W | 72% |
| Monday | 72°F | Chance Rain Showers | 10 mph NE | 30% |
| Monday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 36% |
| Tuesday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 45% |
| Tuesday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Wednesday | 65°F | Chance Rain Showers | 15 mph NE | 33% |
| Wednesday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Thursday | 65°F | Chance Rain Showers | 15 mph NE | 34% |
| Thursday Night | 52°F | Chance Rain Showers | 5 to 10 mph N | 33% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 23% |
| Friday Night | 52°F | Slight Chance Rain Showers | 5 to 10 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Middletown (39.443, -75.718). Updated through the day.
Growing snapshot for Middletown
Last spring frost
Apr 7
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7b
More local growing data for Middletown: nearby ZIP 19730 weather · frost dates · planting calendar · Delaware frost dates
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New Castle
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Wilmington
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Climate data from the nearest NOAA station, Wilmington New Castle Co Ap, De (15.4 mi from Middletown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.