Union City, NJ Weather & Growing Conditions
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind 2 to 6 mph.
7-day forecast
| 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). Updated through the day.
Growing snapshot for Union City, NJ
Last spring frost
Mar 30
First fall frost
Nov 20
Growing season
236 days
Hardiness zone
7b
Explore more for Union City, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, New York Cntrl Pk Twr, Ny (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.