Today | Weather | Sunday, October 11, 2026

Weather in Tracy, California

08:33 PM
Now
Cloudy Night
63° F
Feels Like 63°
Precipitation 0 %
Wind 5 mph
Humidity 58 %
Today
Cloudy Night
Day 75°
Night 52°
Precipitation 1 %
Wind 5 mph

Tracy Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 11, 2025)
Night

Day

72°

Night

52°

Wind

7 mph

Precipitation

0 %

Air Quality in Tracy

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.83 µg/m³
PM10 17.3 µg/m³
O3 0.045 ppm
NO2 0.3 ppb
SO2 0.2 ppb
CO 0.12 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)
PM2.5 – 3.83 µg/m³
PM10 – 17.3 µg/m³
O3 – 88.67 µg/m³
NO2 – 0.63 µg/m³
SO2 – 0.6 µg/m³
CO – 132.3 µg/m³
NH3 – 0.01 µg/m³
NO – 0 µg/m³