South Bound Brook, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Bound Brook, a borough in Somerset County, New Jersey.
Today
73°F
Mostly Sunny
Mostly sunny, with a high near 73. East wind around 5 mph.
7-day forecast for South Bound Brook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 5 mph E | 1% |
| Tonight | 57°F | Mostly Cloudy | 0 to 5 mph E | 6% |
| Sunday | 73°F | Rain Showers | 0 to 5 mph SE | 89% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 70% |
| Monday | 68°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph N | 35% |
| Monday Night | 51°F | Mostly Cloudy then Chance Rain Showers | 5 mph NE | 26% |
| Tuesday | 63°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 27% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Wednesday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
| Thursday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Friday | 65°F | Chance Rain Showers | 10 mph N | 32% |
| Friday Night | 50°F | Chance Rain Showers | 5 to 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for South Bound Brook (40.554, -74.527). Updated through the day.
Growing snapshot for South Bound Brook
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7a
More local growing data for South Bound Brook: nearby ZIP 08880 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Basking Ridge
Bedminster
Belle Mead
Bernardsville
Blackwells Mills
Blawenburg
Bound Brook
Bradley Gardens
Bridgewater Center
Clyde
Dunellen
East Millstone
East Rocky Hill
Far Hills
Finderne
Flagtown
Franklin Center
Franklin Park
Green Knoll
Griggstown
Harlingen
Hillsborough
Kingston
Lamington
Liberty Corner
Lyons
Manville
Martinsville
Middlebush
Millstone
Climate data from the nearest NOAA station, Plainfield, Nj (7.4 mi from South Bound Brook). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.