Today | Weather | Thursday, September 24, 2026

Weather in Riverside, California

10:48 AM
Now
Sunny Weather
81° F
Feels Like 88°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 4
Humidity 53 %
Today
Sunny Weather
Day 97°
Night 64°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 6

Riverside Weather Forecast Updated

40 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 24, 2025)
Night

Day

90°

Night

64°

Wind

5 mph

Precipitation

1 %

Air Quality in Riverside

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.87 µg/m³
PM10 25.22 µg/m³
O3 0.049 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.09 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)
PM2.59.87 µg/m³
PM1025.22 µg/m³
O395.65 µg/m³
NO20.61 µg/m³
SO20.72 µg/m³
CO130.92 µg/m³
NH30 µg/m³
NO0.09 µg/m³