Hartly, DE Weather & Growing Conditions
Today
78°F
Mostly Sunny
Mostly sunny, with a high near 78. East wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Tonight | 64°F | Mostly Cloudy | 5 to 10 mph SE | 5% |
| Sunday | 81°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph S | 17% |
| Sunday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph W | 77% |
| Monday | 72°F | Chance Rain Showers | 10 mph NE | 49% |
| Monday Night | 57°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Tuesday | 68°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Tuesday Night | 55°F | Chance Rain Showers | 15 mph NE | 43% |
| Wednesday | 66°F | Chance Rain Showers | 15 mph NE | 36% |
| Wednesday Night | 56°F | Chance Rain Showers | 15 mph NE | 36% |
| Thursday | 65°F | Chance Rain Showers | 15 mph NE | 36% |
| Thursday Night | 54°F | Chance Rain Showers | 10 to 15 mph N | 36% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 24% |
| Friday Night | 53°F | Slight Chance Rain Showers | 5 to 10 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartly, DE
Last spring frost
Apr 4
First fall frost
Nov 4
Growing season
214 days
Hardiness zone
7b
Explore more for Hartly, DE: full frost dates · planting calendar · Delaware frost dates
Climate data from the nearest NOAA station, Dover, De (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.