Sussex, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sussex, a borough in Sussex County, New Jersey.
Today
85°F
Sunny
Sunny, with a high near 85. Wind around 0 mph.
7-day forecast for Sussex
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 0 mph | 0% |
| Tonight | 61°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 22% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 0 mph | 50% |
| Thursday | 88°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 74% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 74% |
| Friday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 55% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph W | 55% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 52% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 52% |
| Sunday | 88°F | Mostly Sunny | 0 to 5 mph W | 13% |
| Sunday Night | 69°F | Mostly Clear | 0 to 5 mph W | 13% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph W | 17% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Sussex (41.209, -74.608). Updated through the day.
Growing snapshot for Sussex
Last spring frost
Apr 30
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
6b
More local growing data for Sussex: nearby ZIP 07461 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Andover
Branchville
Byram Center
Crandon Lakes
Franklin
Hamburg
Highland Lakes
Hopatcong
Lake Mohawk
Layton
Newton
Ogdensburg
Ross Corner
Stanhope
Vernon Center
Vernon Valley
Climate data from the nearest NOAA station, Sussex 3 Wnw, Nj (3.2 mi from Sussex). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.