Hopelawn, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hopelawn, a community in Middlesex County, New Jersey.
Tonight
61°F
Mostly Cloudy
Mostly cloudy, with a low around 61. Southeast wind around 5 mph.
7-day forecast for Hopelawn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Mostly Cloudy | 5 mph SE | 6% |
| Sunday | 74°F | Rain Showers | 5 to 10 mph SE | 79% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 73% |
| Monday | 69°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Monday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 29% |
| Tuesday | 65°F | Chance Rain Showers | 10 mph NE | 32% |
| Tuesday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 10 mph NE | 32% |
| Wednesday | 65°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Wednesday Night | 53°F | Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Thursday | 65°F | Chance Rain Showers | 15 mph NE | 30% |
| Thursday Night | 52°F | Chance Rain Showers | 15 mph NE | 36% |
| Friday | 66°F | Chance Rain Showers | 10 to 15 mph N | 37% |
| Friday Night | 53°F | Chance Rain Showers | 10 to 15 mph N | 37% |
| Saturday | 69°F | Chance Rain Showers | 10 to 15 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Hopelawn (40.529, -74.294). Updated through the day.
Growing snapshot for Hopelawn
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7b
More local growing data for Hopelawn: nearby ZIP 08863 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
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Helmetta
Highland Park
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Jamesburg
Keasbey
Kendall Park
Madison Park
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Metuchen
Middlesex
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New Brunswick
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Perth Amboy
Climate data from the nearest NOAA station, Plainfield, Nj (6.6 mi from Hopelawn). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.