Watchung, NJ Weather & Growing Conditions
Today
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 67 in the afternoon. Southwest wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 3 to 7 mph SW | 1% |
| Tonight | 56°F | Mostly Cloudy | 6 mph S | 1% |
| Thursday | 71°F | Chance Light Rain | 8 mph S | 46% |
| Thursday Night | 59°F | Light Rain Likely | 6 mph SW | 68% |
| Friday | 68°F | Light Rain | 2 mph S | 79% |
| Friday Night | 51°F | Light Rain | 1 to 5 mph NW | 79% |
| Saturday | 64°F | Mostly Sunny | 5 to 8 mph NW | 14% |
| Saturday Night | 42°F | Slight Chance Light Rain | 9 mph W | 18% |
| Sunday | 59°F | Mostly Sunny | 9 mph W | 9% |
| Sunday Night | 39°F | Partly Cloudy | 8 mph W | 4% |
| Monday | 57°F | Sunny | 8 to 12 mph W | 8% |
| Monday Night | 37°F | Mostly Clear | 8 mph W | 7% |
| Tuesday | 60°F | Sunny | 7 to 12 mph W | 4% |
| Tuesday Night | 38°F | Mostly Clear | 8 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Watchung, NJ
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7a
Explore more for Watchung, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Plainfield, Nj (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.