Sea Isle City, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sea Isle City, a city in Cape May County, New Jersey.
Today
80°F
Partly Sunny
Partly sunny, with a high near 80. Northeast wind 5 to 10 mph.
7-day forecast for Sea Isle City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Tonight | 71°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 10 mph E | 23% |
| Wednesday | 83°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 29% |
| Wednesday Night | 75°F | Partly Cloudy | 5 to 10 mph S | 8% |
| Thursday | 86°F | Sunny | 5 to 15 mph S | 7% |
| Thursday Night | 75°F | Mostly Clear | 10 to 15 mph SW | 9% |
| Friday | 87°F | Sunny | 5 to 10 mph SW | 13% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 24% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 16% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 16% |
| Monday | 87°F | Sunny | 5 to 10 mph SW | 6% |
| Monday Night | 74°F | Partly Cloudy | 5 to 10 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Sea Isle City (39.151, -74.703). Updated through the day.
Growing snapshot for Sea Isle City
Last spring frost
Apr 24
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
7b
More local growing data for Sea Isle City: nearby ZIP 08243 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
Seaville
South Dennis
South Seaville
Stone Harbor
Strathmere
Tuckahoe
Villas
West Cape May
West Wildwood
Whitesboro
Climate data from the nearest NOAA station, Belleplain Stn Forest, Nj (10.3 mi from Sea Isle City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.