Middlesex, NJ Weather & Growing Conditions
Overnight
63°F
Partly Cloudy
Partly cloudy, with a low around 63. Northeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Partly Cloudy | 0 mph | 0% |
| Tuesday | 85°F | Mostly Sunny | 0 mph | 0% |
| Tuesday Night | 65°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 49% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 46% |
| Thursday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 38% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 42% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 38% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 38% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph W | 15% |
| Monday | 90°F | Mostly Sunny | 0 to 10 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Middlesex, NJ
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7a
Explore more for Middlesex, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Plainfield, Nj (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.