Sussex, NJ Weather & Growing Conditions
Today
69°F
Mostly Sunny
Mostly sunny, with a high near 69. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Tonight | 52°F | Mostly Cloudy then Chance Rain Showers | 0 mph | 28% |
| Sunday | 65°F | Rain Showers | 0 to 5 mph SE | 100% |
| Sunday Night | 52°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 73% |
| Monday | 64°F | Partly Sunny | 5 to 10 mph NE | 6% |
| Monday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 23% |
| Tuesday | 59°F | Chance Rain Showers | 5 to 10 mph NE | 25% |
| Tuesday Night | 44°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 24% |
| Wednesday | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph NE | 20% |
| Wednesday Night | 45°F | Chance Rain Showers | 10 mph NE | 30% |
| Thursday | 59°F | Chance Rain Showers | 10 mph NE | 33% |
| Thursday Night | 45°F | Chance Rain Showers | 5 to 10 mph N | 35% |
| Friday | 62°F | Chance Rain Showers | 10 mph N | 31% |
| Friday Night | 46°F | Chance Rain Showers | 5 to 10 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sussex, NJ
Last spring frost
Apr 30
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
6b
Explore more for Sussex, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Sussex 3 Wnw, Nj (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.