Lambertville, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lambertville, a city in Hunterdon 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 Lambertville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Cloudy | 0 to 5 mph SE | 12% |
| Sunday | 75°F | Rain Showers | 5 mph SE | 83% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph W | 72% |
| Monday | 69°F | Partly Sunny then Chance Rain Showers | 5 to 10 mph NE | 28% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 36% |
| Tuesday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 36% |
| Wednesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Wednesday Night | 50°F | Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Thursday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 26% |
| Thursday Night | 49°F | Chance Rain Showers | 10 mph NE | 35% |
| Friday | 65°F | Chance Rain Showers | 10 to 15 mph N | 35% |
| Friday Night | 50°F | Chance Rain Showers | 5 to 10 mph N | 33% |
| Saturday | 69°F | Chance Rain Showers | 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Lambertville (40.369, -74.943). Updated through the day.
Growing snapshot for Lambertville
Last spring frost
Apr 16
First fall frost
Oct 19
Growing season
185 days
Hardiness zone
7a
More local growing data for Lambertville: nearby ZIP 08530 weather · frost dates · planting calendar · New Jersey frost dates
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Pottersville
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White House Station
Climate data from the nearest NOAA station, Lambertville, Nj (2 mi from Lambertville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.