Dewey Beach, DE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dewey Beach, a town in Sussex County, Delaware.
Today
81°F
Partly Sunny
Partly sunny, with a high near 81. Northeast wind around 10 mph.
7-day forecast for Dewey Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Partly Sunny | 10 mph NE | 5% |
| Tonight | 71°F | Mostly Cloudy then Chance Rain Showers | 5 to 10 mph E | 25% |
| Wednesday | 87°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph SE | 39% |
| Wednesday Night | 74°F | Mostly Clear | 5 to 10 mph S | 8% |
| Thursday | 92°F | Sunny | 5 to 15 mph S | 7% |
| Thursday Night | 75°F | Mostly Clear | 10 to 15 mph S | 7% |
| Friday | 93°F | Sunny | 10 mph SW | 13% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 10 mph SW | 36% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph SW | 20% |
| Saturday Night | 74°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 20% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 20% |
| Monday | 87°F | Sunny | 5 to 10 mph SW | 7% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 10 mph SW | 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 Aug 4, 2026.