Millsboro, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millsboro, a town in Sussex County, Delaware.
Overnight
66°F
Mostly Cloudy
Mostly cloudy, with a low around 66. Northeast wind around 5 mph.
7-day forecast for Millsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Cloudy | 5 mph NE | 0% |
| Saturday | 76°F | Partly Sunny | 5 to 15 mph NE | 9% |
| Saturday Night | 66°F | Partly Cloudy then Patchy Fog | 5 to 10 mph E | 2% |
| Sunday | 80°F | Patchy Fog then Mostly Sunny | 5 to 10 mph SE | 4% |
| Sunday Night | 68°F | Showers And Thunderstorms Likely | 5 to 10 mph SW | 56% |
| Monday | 76°F | Chance Showers And Thunderstorms | 5 to 15 mph N | 54% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 43% |
| Tuesday | 71°F | Chance Rain Showers | 15 to 20 mph NE | 51% |
| Tuesday Night | 62°F | Chance Rain Showers | 15 to 20 mph NE | 51% |
| Wednesday | 68°F | Chance Rain Showers | 20 to 25 mph NE | 50% |
| Wednesday Night | 60°F | Chance Showers And Thunderstorms | 15 to 25 mph NE | 50% |
| Thursday | 68°F | Chance Showers And Thunderstorms | 15 to 20 mph NE | 41% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms | 10 to 20 mph N | 41% |
| Friday | 70°F | Slight Chance Rain Showers | 10 to 15 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Millsboro (38.589, -75.310). Updated through the day.
Growing snapshot for Millsboro
Last spring frost
Apr 4
First fall frost
Nov 6
Growing season
217 days
Hardiness zone
7b
More local growing data for Millsboro: nearby ZIP 19966 weather · frost dates · planting calendar · Delaware frost dates
Nearby towns & communities
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Bridgeville
Dagsboro
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Dewey Beach
Ellendale
Farmington
Fenwick Island
Frankford
Georgetown
Greenwood
Henlopen Acres
Laurel
Lewes
Lincoln
Long Neck
Milford
Millville
Milton
Ocean View
Rehoboth Beach
Seaford
Selbyville
Slaughter Beach
South Bethany
Climate data from the nearest NOAA station, Georgetown Sussex Co Ap, De (8.8 mi from Millsboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.