Today | Weather | Monday, April 27, 2026

Weather in Tracy, California

01:36 PM
Now
Cloudy Weather
68° F
Feels Like 75°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 8
Humidity 43 %
Today
Cloudy Weather
Day 70°
Night 46°
Precipitation 11 %
Wind 7 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.

Tracy Weather Forecast Updated

Last updated on

Air Quality in Tracy

NOW
57 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.04 µg/m³
PM10 4.82 µg/m³
O3 0.056 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.11 ppm
NH3 0.04 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)
PM2.52.04 µg/m³
PM104.82 µg/m³
O3110.66 µg/m³
NO20.44 µg/m³
SO20.73 µg/m³
CO131.41 µg/m³
NH30.04 µg/m³
NO0.08 µg/m³