Milltown, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Milltown, a borough in Middlesex County, New Jersey.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Northeast wind around 0 mph.
7-day forecast for Milltown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 64°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 50% |
| 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 | 34% |
| Thursday Night | 73°F | Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 43% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Saturday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 37% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 37% |
| Sunday | 89°F | Mostly Sunny | 0 to 5 mph W | 14% |
| Sunday Night | 71°F | Mostly Clear | 0 to 5 mph SW | 14% |
| Monday | 92°F | Sunny | 0 to 10 mph W | 8% |
| Monday Night | 71°F | Partly Cloudy | 5 mph W | 12% |
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
Nearby towns & communities
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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 Aug 4, 2026.