New Gretna, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Gretna, a community in Burlington County, New Jersey.
This Afternoon
73°F
Partly Sunny
Partly sunny, with a high near 73. East wind around 10 mph.
7-day forecast for New Gretna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Partly Sunny | 10 mph E | 3% |
| Tonight | 60°F | Partly Cloudy | 5 to 10 mph E | 4% |
| Sunday | 77°F | Partly Sunny then Slight Chance Rain Showers | 5 to 15 mph S | 21% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 69% |
| Monday | 70°F | Rain Showers Likely | 10 to 15 mph NE | 65% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Tuesday | 66°F | Chance Rain Showers | 15 to 20 mph NE | 40% |
| Tuesday Night | 54°F | Chance Rain Showers | 15 to 20 mph NE | 37% |
| Wednesday | 66°F | Chance Rain Showers | 15 to 25 mph NE | 35% |
| Wednesday Night | 54°F | Chance Rain Showers | 15 to 20 mph NE | 38% |
| Thursday | 65°F | Chance Rain Showers | 15 to 20 mph NE | 41% |
| Thursday Night | 53°F | Chance Rain Showers | 10 to 20 mph N | 39% |
| Friday | 67°F | Chance Rain Showers | 15 mph N | 33% |
| Friday Night | 51°F | Chance Rain Showers | 10 to 15 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov) for New Gretna (39.588, -74.455). Updated through the day.
Growing snapshot for New Gretna
Last spring frost
Apr 18
First fall frost
Oct 29
Growing season
190 days
Hardiness zone
7a
More local growing data for New Gretna: nearby ZIP 08224 weather · frost dates · planting calendar · New Jersey frost dates
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Climate data from the nearest NOAA station, Atlantic City Intl Ap, Nj (11.6 mi from New Gretna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.