Three Bridges, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Three Bridges, a community in Hunterdon County, New Jersey.
This Afternoon
74°F
Partly Sunny
Partly sunny, with a high near 74. East wind around 5 mph.
7-day forecast for Three Bridges
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Partly Sunny | 5 mph E | 1% |
| Tonight | 57°F | Mostly Cloudy | 0 to 5 mph E | 12% |
| Sunday | 74°F | Rain Showers | 5 mph SE | 86% |
| Sunday Night | 56°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph NW | 79% |
| Monday | 70°F | Partly Sunny then Chance Rain Showers | 5 to 10 mph NE | 26% |
| Monday Night | 50°F | Chance Rain Showers | 5 mph NE | 30% |
| Tuesday | 65°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Tuesday Night | 49°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 | 49°F | Slight Chance Rain Showers | 10 mph NE | 22% |
| Thursday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 26% |
| Thursday Night | 48°F | Chance Rain Showers | 10 mph NE | 34% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 34% |
| Friday Night | 49°F | Chance Rain Showers | 5 to 10 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Three Bridges (40.521, -74.800). Updated through the day.
Growing snapshot for Three Bridges
Last spring frost
Apr 16
First fall frost
Oct 27
Growing season
192 days
Hardiness zone
7a
More local growing data for Three Bridges: nearby ZIP 08887 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Annandale
Asbury
Bloomsbury
Califon
Clinton
Flemington
Frenchtown
Glen Gardner
Hampton
High Bridge
Lambertville
Lebanon
Milford
Oldwick
Pottersville
Ringoes
Stockton
White House Station
Climate data from the nearest NOAA station, Wertsville 4 Ne, Nj (4.9 mi from Three Bridges). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.