Newton, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newton, a town in Sussex County, New Jersey.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. East wind around 0 mph.
7-day forecast for Newton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 53°F | Mostly Cloudy then Chance Rain Showers | 0 mph | 30% |
| Sunday | 67°F | Rain Showers | 0 to 5 mph S | 100% |
| Sunday Night | 52°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 69% |
| Monday | 66°F | Partly Sunny | 5 mph NE | 9% |
| Monday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 24% |
| Tuesday | 61°F | Chance Rain Showers | 5 mph NE | 27% |
| Tuesday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NE | 25% |
| Wednesday | 61°F | Slight Chance Rain Showers | 5 to 10 mph NE | 21% |
| Wednesday Night | 45°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Thursday | 60°F | Chance Rain Showers | 5 to 10 mph NE | 34% |
| Thursday Night | 45°F | Chance Rain Showers | 5 mph N | 35% |
| Friday | 64°F | Chance Rain Showers | 5 mph N | 30% |
| Friday Night | 46°F | Chance Rain Showers | 0 to 5 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Newton (41.051, -74.754). Updated through the day.
Growing snapshot for Newton
Last spring frost
Apr 24
First fall frost
Oct 16
Growing season
176 days
Hardiness zone
6b
More local growing data for Newton: nearby ZIP 07860 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Andover
Branchville
Byram Center
Crandon Lakes
Franklin
Hamburg
Highland Lakes
Hopatcong
Lake Mohawk
Layton
Ogdensburg
Ross Corner
Stanhope
Sussex
Vernon Center
Vernon Valley
Climate data from the nearest NOAA station, Newton, Nj (2.3 mi from Newton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.