Dewey Beach, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dewey Beach, a town in Sussex County, Delaware.
Overnight
55°F
Mostly Clear
Mostly clear, with a low around 55. South wind around 5 mph.
7-day forecast for Dewey Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Clear | 5 mph S | 1% |
| Wednesday | 72°F | Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 60°F | Mostly Cloudy | 10 mph S | 3% |
| Thursday | 74°F | Partly Sunny | 10 to 15 mph S | 13% |
| Thursday Night | 63°F | Light Rain | 10 to 15 mph S | 80% |
| Friday | 70°F | Light Rain | 10 to 15 mph SW | 93% |
| Friday Night | 58°F | Light Rain | 5 to 10 mph SW | 93% |
| Saturday | 64°F | Chance Light Rain | 10 to 15 mph NW | 39% |
| Saturday Night | 50°F | Partly Cloudy | 10 to 15 mph NW | 14% |
| Sunday | 59°F | Mostly Sunny | 10 to 15 mph NW | 6% |
| Sunday Night | 49°F | Partly Cloudy then Slight Chance Light Rain | 10 to 15 mph W | 16% |
| Monday | 59°F | Slight Chance Light Rain | 15 to 20 mph W | 22% |
| Monday Night | 48°F | Slight Chance Light Rain | 10 to 15 mph W | 22% |
| Tuesday | 61°F | Slight Chance Light Rain then Sunny | 15 to 20 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Dewey Beach (38.696, -75.075). Updated through the day.
Growing snapshot for Dewey Beach
Last spring frost
Mar 29
First fall frost
Nov 14
Growing season
231 days
Hardiness zone
8a
More local growing data for Dewey Beach: nearby ZIP 19971 weather · frost dates · planting calendar · Delaware frost dates
Nearby towns & communities
Bethany Beach
Bethel
Blades
Bridgeville
Dagsboro
Delmar
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
South Bethany
Climate data from the nearest NOAA station, Lewes, De (7 mi from Dewey Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.