Port Penn, DE Weather & Growing Conditions
Overnight
63°F
Partly Cloudy
Partly cloudy, with a low around 63. Northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Partly Cloudy | 10 mph NE | 0% |
| Saturday | 77°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Saturday Night | 65°F | Mostly Cloudy | 5 to 10 mph SE | 7% |
| Sunday | 80°F | Chance Rain Showers | 5 to 10 mph S | 30% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph NW | 71% |
| Monday | 71°F | Chance Rain Showers | 10 mph NE | 30% |
| Monday Night | 58°F | Chance Rain Showers | 10 mph NE | 36% |
| Tuesday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Tuesday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Wednesday | 65°F | Chance Rain Showers | 15 mph NE | 32% |
| Wednesday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Thursday | 64°F | Chance Rain Showers | 15 mph NE | 34% |
| Thursday Night | 55°F | Chance Rain Showers | 10 to 15 mph N | 34% |
| Friday | 67°F | Chance Rain Showers | 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Penn, DE
Last spring frost
Apr 7
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7b
Explore more for Port Penn, DE: full frost dates · planting calendar · Delaware frost dates
Climate data from the nearest NOAA station, Wilmington New Castle Co Ap, De (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.