Union City, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union City, a city in Hudson County, New Jersey.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind 2 to 6 mph.
7-day forecast for Union City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 2 to 6 mph NE | 0% |
| Tonight | 68°F | Mostly Cloudy | 2 to 7 mph NE | 3% |
| Wednesday | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph E | 33% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 8 mph S | 26% |
| Thursday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 9 mph SW | 39% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph SW | 39% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 8 mph SW | 42% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 6 mph SW | 41% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SW | 35% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 5 to 8 mph W | 35% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph W | 15% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 8 mph SW | 15% |
| Monday | 90°F | Sunny | 5 to 12 mph W | 10% |
| Monday Night | 74°F | Partly Cloudy | 6 to 10 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov) for Union City (40.767, -74.032). Updated through the day.
Growing snapshot for Union City
Last spring frost
Mar 30
First fall frost
Nov 20
Growing season
236 days
Hardiness zone
7b
More local growing data for Union City: nearby ZIP 07087 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, New York Cntrl Pk Twr, Ny (3.4 mi from Union City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.