North Caldwell, NJ Weather & Growing Conditions
Tonight
59°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 3 to 7 mph SE | 22% |
| Sunday | 70°F | Rain Showers then Rain | 6 to 9 mph SE | 91% |
| Sunday Night | 57°F | Rain then Rain Showers Likely | 5 to 13 mph W | 82% |
| Monday | 67°F | Slight Chance Rain Showers | 8 to 13 mph NE | 21% |
| Monday Night | 52°F | Chance Rain Showers | 7 to 10 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 12 mph NE | 30% |
| Tuesday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 9 to 13 mph NE | 29% |
| Wednesday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph NE | 17% |
| Wednesday Night | 50°F | Slight Chance Rain Showers | 15 mph NE | 21% |
| Thursday | 62°F | Chance Rain Showers | 13 to 16 mph NE | 28% |
| Thursday Night | 50°F | Chance Rain Showers | 13 to 16 mph NE | 35% |
| Friday | 64°F | Chance Rain Showers | 13 to 17 mph N | 35% |
| Friday Night | 52°F | Chance Rain Showers | 16 mph N | 35% |
| Saturday | 67°F | Chance Rain Showers | 12 to 16 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for North Caldwell, NJ
Last spring frost
Apr 18
First fall frost
Oct 24
Growing season
187 days
Hardiness zone
7a
Explore more for North Caldwell, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Essex Fells Service Bldg, Nj (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.