Spotswood, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spotswood, a borough in Middlesex County, New Jersey.
Tonight
59°F
Mostly Cloudy
Mostly cloudy, with a low around 59. Southeast wind 0 to 5 mph.
7-day forecast for Spotswood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Cloudy | 0 to 5 mph SE | 5% |
| Sunday | 76°F | Rain Showers | 5 mph SE | 75% |
| Sunday Night | 58°F | Rain Showers Likely | 5 mph W | 70% |
| Monday | 70°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Monday Night | 54°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| 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 | 21% |
| Wednesday Night | 52°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Thursday | 65°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Thursday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Friday | 66°F | Chance Rain Showers | 10 to 15 mph N | 37% |
| Friday Night | 52°F | Chance Rain Showers | 5 to 10 mph N | 37% |
| Saturday | 70°F | Chance Rain Showers | 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Spotswood (40.394, -74.393). Updated through the day.
Growing snapshot for Spotswood
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
193 days
Hardiness zone
7a
More local growing data for Spotswood: nearby ZIP 08884 weather · frost dates · planting calendar · New Jersey frost dates
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Metuchen
Middlesex
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New Brunswick
Old Bridge
Climate data from the nearest NOAA station, New Brunswick 3 Se, Nj (5.7 mi from Spotswood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.