Today | Weather | Wednesday, January 7, 2026

Weather in Tracy, California

11:37 PM
Now
Cloudy Night
48° F
Feels Like 41°
Precipitation 6 %
Wind 12 mph
Humidity 82 %
Today
Cloudy Weather
Day 57°
Night 36°
Precipitation 6 %
Wind 12 mph
UV Index (0 - 11+) 3

Tracy Weather Forecast Updated

Last updated on

Air Quality in Tracy

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.89 µg/m³
PM10 5.07 µg/m³
O3 0.045 ppm
NO2 0.4 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.01 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)
PM2.51.89 µg/m³
PM105.07 µg/m³
O389.26 µg/m³
NO20.68 µg/m³
SO20.23 µg/m³
CO128.17 µg/m³
NH30.01 µg/m³
NO0 µg/m³