Today | Weather | Wednesday, March 18, 2026

Weather in Union City, New Jersey

05:23 AM
Now
Night
28° F
Feels Like 19°
Precipitation 0 %
Wind 9 mph
Humidity 45 %
Today
Cloudy Weather
Day 39°
Night 30°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5

Union City Weather Forecast Updated

Last updated on

Air Quality in Union City

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.92 µg/m³
PM10 6.92 µg/m³
O3 0.041 ppm
NO2 5.1 ppb
SO2 2 ppb
CO 0.18 ppm
NH3 1.55 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.92 µg/m³
PM106.92 µg/m³
O380.72 µg/m³
NO29.65 µg/m³
SO25.23 µg/m³
CO201.21 µg/m³
NH31.55 µg/m³
NO0 µg/m³