Today | Weather | Monday, June 29, 2026

Weather in Tustin, California

06:01 PM
Now
Cloudy Weather
72° F
Feels Like 70°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 62 %
Today
Cloudy Weather
Day 73°
Night 63°
Precipitation 2 %
Wind 8 mph
UV Index (0 - 11+) 5

Tustin Weather Forecast Updated

Last updated on

Air Quality in Tustin

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.37 µg/m³
PM10 19.52 µg/m³
O3 0.041 ppm
NO2 0.1 ppb
SO2 0.3 ppb
CO 0.07 ppm
NH3 0 µg/m³
NO 0.01 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)
PM2.56.37 µg/m³
PM1019.52 µg/m³
O379.56 µg/m³
NO20.26 µg/m³
SO20.86 µg/m³
CO82.23 µg/m³
NH30 µg/m³
NO0.01 µg/m³