Today | Weather | Monday, April 27, 2026

Weather in Chino Hills, California

01:38 PM
Now
Cloudy Weather
64° F
Feels Like 72°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 9
Humidity 43 %
Today
Cloudy Weather
Day 66°
Night 46°
Precipitation 6 %
Wind 9 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.

Chino Hills Weather Forecast Updated

3 minutes ago
Last updated on

Air Quality in Chino Hills

NOW
77 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.22 µg/m³
PM10 2.37 µg/m³
O3 0.063 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.01 µg/m³
NO 0.04 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)
PM2.51.22 µg/m³
PM102.37 µg/m³
O3123.16 µg/m³
NO20.22 µg/m³
SO20.37 µg/m³
CO128.38 µg/m³
NH30.01 µg/m³
NO0.04 µg/m³