Today | Weather | Wednesday, March 18, 2026

Weather in Tracy, California

07:41 AM
Now
Sunny Weather
59° F
Feels Like 63°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 1
Humidity 91 %
Today
Sunny Weather
Day 88°
Night 57°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 5

Tracy Weather Forecast Updated

4 minutes ago
Last updated on

Air Quality in Tracy

NOW
71 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 21.71 µg/m³
PM10 29.14 µg/m³
O3 0.025 ppm
NO2 6.1 ppb
SO2 0.4 ppb
CO 0.23 ppm
NH3 1.72 µg/m³
NO 0.08 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.521.71 µg/m³
PM1029.14 µg/m³
O348.46 µg/m³
NO211.4 µg/m³
SO21.03 µg/m³
CO264.09 µg/m³
NH31.72 µg/m³
NO0.08 µg/m³