Rocky Hill, NJ Weather & Growing Conditions
Today
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 69 in the afternoon. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny | 0 to 5 mph SW | 1% |
| Tonight | 56°F | Mostly Cloudy | 0 to 5 mph S | 1% |
| Thursday | 73°F | Chance Light Rain | 5 mph S | 42% |
| Thursday Night | 60°F | Light Rain | 0 to 5 mph S | 80% |
| Friday | 70°F | Light Rain | 0 mph | 82% |
| Friday Night | 49°F | Light Rain | 0 mph | 82% |
| Saturday | 65°F | Mostly Sunny | 0 to 5 mph W | 8% |
| Saturday Night | 40°F | Slight Chance Light Rain | 5 mph W | 15% |
| Sunday | 60°F | Mostly Sunny | 5 mph W | 7% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 59°F | Sunny | 5 to 10 mph W | 8% |
| Monday Night | 34°F | Mostly Clear | 5 mph W | 6% |
| Tuesday | 62°F | Sunny | 5 to 10 mph W | 4% |
| Tuesday Night | 35°F | Mostly Clear | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rocky Hill, NJ
Last spring frost
Apr 16
First fall frost
Oct 27
Growing season
192 days
Hardiness zone
7a
Explore more for Rocky Hill, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Wertsville 4 Ne, Nj (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.