Martinsville, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Martinsville, a community in Somerset County, New Jersey.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind around 0 mph.
7-day forecast for Martinsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 64°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 49% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 50% |
| Thursday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 41% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 44% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 46% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 70°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 88°F | Sunny | 0 to 10 mph W | 11% |
| Monday Night | 69°F | Partly Cloudy | 0 to 5 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Martinsville (40.603, -74.576). Updated through the day.
Growing snapshot for Martinsville
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
7a
More local growing data for Martinsville: nearby ZIP 08836 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Basking Ridge
Bedminster
Belle Mead
Bernardsville
Blackwells Mills
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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
Middlebush
Millstone
Neshanic
Climate data from the nearest NOAA station, Somerville 4 Nw, Nj (5.2 mi from Martinsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.