Today | Weather | Saturday, September 12, 2026

Weather in Riverside, California

10:27 PM
Now
Night
79° F
Feels Like 75°
Precipitation 0 %
Wind 6 mph
Humidity 62 %
Today
Night
Day 93°
Night 70°
Precipitation 0 %
Wind 5 mph

Riverside Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 12, 2025)
Cloudy Night

Day

81°

Night

63°

Wind

6 mph

Precipitation

1 %

Air Quality in Riverside

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.66 µg/m³
PM10 28.81 µg/m³
O3 0.052 ppm
NO2 0.6 ppb
SO2 0.4 ppb
CO 0.21 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)
PM2.59.66 µg/m³
PM1028.81 µg/m³
O3102.88 µg/m³
NO21.16 µg/m³
SO21.17 µg/m³
CO245.67 µg/m³
NH30 µg/m³
NO0 µg/m³