Milltown, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Milltown, a borough in Middlesex County, New Jersey.
This Afternoon
73°F
Partly Sunny
Partly sunny, with a high near 73. East wind around 5 mph.
7-day forecast for Milltown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Partly Sunny | 5 mph E | 1% |
| Tonight | 59°F | Mostly Cloudy | 0 to 5 mph SE | 6% |
| Sunday | 75°F | Rain Showers | 5 mph SE | 78% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 5 mph W | 67% |
| Monday | 70°F | Chance Rain Showers | 5 to 10 mph NE | 29% |
| Monday Night | 53°F | Chance Rain Showers | 5 to 10 mph NE | 29% |
| Tuesday | 66°F | Chance Rain Showers | 10 mph NE | 33% |
| Tuesday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 33% |
| Wednesday | 66°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Wednesday Night | 52°F | Slight Chance Rain Showers | 10 mph NE | 21% |
| Thursday | 64°F | Chance Rain Showers | 10 mph NE | 30% |
| Thursday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Friday | 66°F | Chance Rain Showers | 10 to 15 mph N | 36% |
| Friday Night | 51°F | Chance Rain Showers | 10 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for Milltown (40.450, -74.435). Updated through the day.
Growing snapshot for Milltown
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
193 days
Hardiness zone
7a
More local growing data for Milltown: nearby ZIP 08850 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, New Brunswick 3 Se, Nj (1.9 mi from Milltown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.