Today | Weather | Friday, October 9, 2026

Weather in Chino Hills, California

08:46 PM
Now
Night
73° F
Feels Like 72°
Precipitation 0 %
Wind 7 mph
Humidity 64 %
Today
Cloudy Night
Day 88°
Night 66°
Precipitation 4 %
Wind 5 mph

Chino Hills Weather Forecast Updated

40 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Stormy Weather

Day

84°

Night

61°

Wind

4 mph

Precipitation

49 %

Air Quality in Chino Hills

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.92 µg/m³
PM10 22.97 µg/m³
O3 0.051 ppm
NO2 0.5 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0 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 – 9.92 µg/m³
PM10 – 22.97 µg/m³
O3 – 99.78 µg/m³
NO2 – 0.88 µg/m³
SO2 – 0.76 µg/m³
CO – 118.16 µg/m³
NH3 – 0 µg/m³
NO – 0 µg/m³