South Dennis, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Dennis, a community in Cape May County, New Jersey.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind 5 to 10 mph.
7-day forecast for South Dennis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Tonight | 69°F | Mostly Cloudy then Chance Rain Showers | 0 to 5 mph E | 25% |
| Wednesday | 85°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 10 mph SE | 35% |
| Wednesday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph S | 18% |
| Thursday | 88°F | Sunny | 5 to 10 mph S | 9% |
| Thursday Night | 75°F | Mostly Clear | 5 to 10 mph SW | 11% |
| Friday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 mph SW | 39% |
| Saturday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 24% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 24% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 18% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 18% |
| Monday | 90°F | Sunny | 5 to 10 mph SW | 6% |
| Monday Night | 73°F | Partly Cloudy | 5 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov) for South Dennis (39.170, -74.804). Updated through the day.
Growing snapshot for South Dennis
Last spring frost
Apr 24
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
7b
More local growing data for South Dennis: nearby ZIP 08245 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Avalon
Beesleys Point
Belleplain
Burleigh
Cape May
Cape May Court House
Cape May Point
Corbin City
Dennisville
Diamond Beach
Erma
Goshen
Marmora
Marshallville
North Cape May
North Wildwood
Ocean City
Ocean View
Palermo
Rio Grande
Sea Isle City
Seaville
South Seaville
Stone Harbor
Strathmere
Tuckahoe
Villas
West Cape May
West Wildwood
Whitesboro
Climate data from the nearest NOAA station, Belleplain Stn Forest, Nj (5.1 mi from South Dennis). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.