Green Knoll, NJ Weather & Growing Conditions
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 5 mph SE | 1% |
| Tonight | 56°F | Mostly Cloudy | 0 to 5 mph SE | 9% |
| Sunday | 72°F | Rain Showers | 0 to 5 mph SE | 92% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 68% |
| Monday | 69°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 31% |
| Monday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 5 mph NE | 26% |
| Tuesday | 64°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday Night | 49°F | Chance Rain Showers | 5 to 10 mph NE | 27% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 23% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 mph NE | 32% |
| Thursday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday Night | 48°F | Chance Rain Showers | 5 to 10 mph N | 34% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 31% |
| Friday Night | 49°F | Chance Rain Showers | 5 to 10 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Green Knoll, NJ
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
7a
Explore more for Green Knoll, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Somerville 4 Nw, Nj (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.