Millsboro, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millsboro, a town in Sussex County, Delaware.
Overnight
70°F
Mostly Cloudy
Mostly cloudy, with a low around 70. Northeast wind around 5 mph.
7-day forecast for Millsboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Mostly Cloudy | 5 mph NE | 6% |
| Tuesday | 83°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Tuesday Night | 70°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 10 mph E | 40% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 0 to 10 mph SE | 51% |
| Wednesday Night | 74°F | Mostly Clear | 5 to 10 mph S | 10% |
| Thursday | 90°F | Sunny | 5 to 10 mph SW | 7% |
| Thursday Night | 75°F | Mostly Clear | 5 to 10 mph SW | 7% |
| Friday | 91°F | Sunny | 5 to 10 mph SW | 12% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 34% |
| Saturday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 34% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 23% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 23% |
| Monday | 92°F | Sunny | 5 to 10 mph W | 7% |
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
Bethany Beach
Bethel
Blades
Bridgeville
Dagsboro
Delmar
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 Aug 4, 2026.