Hackettstown, NJ Weather & Growing Conditions
Tonight
56°F
Mostly Cloudy then Chance Rain Showers
A chance of rain showers after 2am. Mostly cloudy, with a low around 56. Southeast wind 0 to 5 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Cloudy then Chance Rain Showers | 0 to 5 mph SE | 35% |
| Sunday | 70°F | Rain Showers | 5 mph SE | 98% |
| Sunday Night | 54°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph N | 79% |
| Monday | 68°F | Partly Sunny then Slight Chance Rain Showers | 5 mph NE | 22% |
| Monday Night | 49°F | Chance Rain Showers | 0 to 5 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 5 mph NE | 33% |
| Tuesday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 31% |
| Wednesday | 62°F | Slight Chance Rain Showers | 10 mph NE | 19% |
| Wednesday Night | 47°F | Slight Chance Rain Showers | 5 to 10 mph NE | 21% |
| Thursday | 61°F | Chance Rain Showers | 5 to 10 mph NE | 25% |
| Thursday Night | 47°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Friday | 65°F | Chance Rain Showers | 5 to 10 mph N | 33% |
| Friday Night | 49°F | Chance Rain Showers | 5 to 10 mph N | 33% |
| Saturday | 68°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 Hackettstown, NJ
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
6b
Explore more for Hackettstown, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Andover Aeroflex Ap, Nj (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.