Raritan, NJ Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 63°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 52% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 mph | 57% |
| Thursday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 43% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 46% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 48% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 48% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Sunday | 88°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 70°F | Mostly Clear | 0 to 5 mph SW | 12% |
| Monday | 91°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). Updated through the day.
Growing snapshot for Raritan, NJ
Last spring frost
Apr 30
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
7a
Explore more for Raritan, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Somerville 4 Nw, Nj (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.