Today | Weather | Wednesday, August 12, 2026

Weather in Plainfield, New Jersey

07:51 AM
Now
Partly Sunny with Showers
72° F
Feels Like 70°
Precipitation 40 %
Wind 4 mph
UV Index (0 - 11+) 1
Humidity 63 %
Today
Cloudy Weather
Day 86°
Night 68°
Precipitation 40 %
Wind 6 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Plainfield Weather Forecast Updated

40 minutes ago
Last updated on

Air Quality in Plainfield

NOW
18 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 4.2 µg/m³
PM10 5.19 µg/m³
O3 0.008 ppm
NO2 5.4 ppb
SO2 1.1 ppb
CO 0.16 ppm
NH3 0.39 µg/m³
NO 1.31 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)
PM2.54.2 µg/m³
PM105.19 µg/m³
O316.27 µg/m³
NO210.23 µg/m³
SO22.86 µg/m³
CO184.67 µg/m³
NH30.39 µg/m³
NO1.31 µg/m³