Plainsboro Center, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainsboro Center, a community in Middlesex County, New Jersey.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. East wind around 5 mph.
7-day forecast for Plainsboro Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 5 mph E | 1% |
| Tonight | 56°F | Mostly Cloudy | 0 to 5 mph E | 4% |
| Sunday | 74°F | Rain Showers | 5 mph SE | 79% |
| Sunday Night | 56°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph W | 70% |
| Monday | 68°F | Chance Rain Showers | 5 to 10 mph NE | 42% |
| Monday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 29% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 34% |
| Tuesday Night | 50°F | Chance Rain Showers | 10 mph NE | 34% |
| Wednesday | 64°F | Chance Rain Showers | 15 mph NE | 26% |
| Wednesday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Thursday Night | 49°F | Chance Rain Showers | 10 mph N | 34% |
| Friday | 65°F | Chance Rain Showers | 10 mph N | 32% |
| Friday Night | 49°F | Chance Rain Showers | 5 to 10 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov) for Plainsboro Center (40.331, -74.592). Updated through the day.
Growing snapshot for Plainsboro Center
Last spring frost
Apr 25
First fall frost
Oct 16
Growing season
173 days
Hardiness zone
7a
More local growing data for Plainsboro Center: nearby ZIP 08536 weather · frost dates · planting calendar · New Jersey frost dates
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New Brunswick
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Climate data from the nearest NOAA station, Hightstown 2 W, Nj (4.8 mi from Plainsboro Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.