Flemington, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Flemington, a borough in Hunterdon County, New Jersey.
Tonight
58°F
Mostly Cloudy
Mostly cloudy, with a low around 58. East wind 0 to 5 mph.
7-day forecast for Flemington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy | 0 to 5 mph E | 14% |
| Sunday | 74°F | Rain Showers | 5 mph SE | 87% |
| Sunday Night | 57°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph NW | 80% |
| Monday | 70°F | Partly Sunny then Chance Rain Showers | 5 to 10 mph NE | 26% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Tuesday | 65°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Tuesday Night | 50°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 35% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| 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 | 34% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 34% |
| Friday Night | 50°F | Chance Rain Showers | 10 mph N | 34% |
| Saturday | 70°F | Chance Rain Showers | 10 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Flemington (40.509, -74.860). Updated through the day.
Growing snapshot for Flemington
Last spring frost
Apr 24
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
7a
More local growing data for Flemington: nearby ZIP 08822 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Annandale
Asbury
Bloomsbury
Califon
Clinton
Frenchtown
Glen Gardner
Hampton
High Bridge
Lambertville
Lebanon
Milford
Oldwick
Pottersville
Ringoes
Stockton
Three Bridges
White House Station
Climate data from the nearest NOAA station, Flemington 5 Nnw, Nj (3.7 mi from Flemington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.