Greenwich, NJ Weather & Growing Conditions
Today
77°F
Partly Sunny
Partly sunny, with a high near 77. East wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Partly Sunny | 5 to 10 mph E | 1% |
| Tonight | 63°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Sunday | 79°F | Partly Sunny then Chance Rain Showers | 5 to 10 mph S | 26% |
| Sunday Night | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 72% |
| Monday | 72°F | Chance Rain Showers | 10 mph NE | 47% |
| Monday Night | 57°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Tuesday | 67°F | Chance Rain Showers | 15 mph NE | 43% |
| Tuesday Night | 56°F | Chance Rain Showers | 15 mph NE | 40% |
| Wednesday | 65°F | Chance Rain Showers | 15 to 20 mph NE | 32% |
| Wednesday Night | 56°F | Chance Rain Showers | 15 to 20 mph NE | 35% |
| Thursday | 65°F | Chance Rain Showers | 15 to 20 mph NE | 36% |
| Thursday Night | 55°F | Chance Rain Showers | 15 to 20 mph N | 36% |
| Friday | 68°F | Chance Rain Showers | 10 to 15 mph N | 29% |
| Friday Night | 54°F | Chance Rain Showers | 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greenwich, NJ
Last spring frost
Apr 10
First fall frost
Nov 1
Growing season
205 days
Hardiness zone
7b
Explore more for Greenwich, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Seabrook Farms, Nj (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.