South Bethany, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Bethany, a town in Sussex County, Delaware.
Tonight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. South wind around 5 mph.
7-day forecast for South Bethany
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Partly Cloudy | 5 mph S | 2% |
| Wednesday | 71°F | Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 60°F | Mostly Cloudy | 5 to 10 mph S | 4% |
| Thursday | 72°F | Partly Sunny | 10 to 15 mph S | 10% |
| Thursday Night | 62°F | Mostly Cloudy then Light Rain Likely | 10 mph S | 73% |
| Friday | 70°F | Light Rain | 10 to 15 mph S | 93% |
| Friday Night | 57°F | Light Rain | 5 to 10 mph W | 93% |
| Saturday | 64°F | Chance Light Rain | 10 mph NW | 41% |
| Saturday Night | 48°F | Partly Cloudy | 10 mph NW | 14% |
| Sunday | 59°F | Mostly Sunny | 10 mph NW | 5% |
| Sunday Night | 47°F | Partly Cloudy then Slight Chance Light Rain | 5 to 10 mph W | 16% |
| Monday | 59°F | Slight Chance Light Rain | 10 to 20 mph W | 20% |
| Monday Night | 46°F | Slight Chance Light Rain | 10 mph W | 20% |
| Tuesday | 61°F | Slight Chance Light Rain then Sunny | 15 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for South Bethany (38.516, -75.058). Updated through the day.
Growing snapshot for South Bethany
Last spring frost
Mar 29
First fall frost
Nov 14
Growing season
231 days
Hardiness zone
8a
More local growing data for South Bethany: nearby ZIP 19930 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
Millsboro
Millville
Milton
Ocean View
Rehoboth Beach
Seaford
Selbyville
Slaughter Beach
Climate data from the nearest NOAA station, Lewes, De (16.7 mi from South Bethany). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.