Today | Weather | Thursday, October 30, 2025

Weather in Rialto, California

11:30 AM
Now
Sunny Weather
84° F
Feels Like 88°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 3
Humidity 10 %
Today
Sunny Weather
Day 91°
Night 55°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4

Rialto Weather Forecast Updated

55 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (October 30, 2024)

Cloudy Night

Day

70°

Night

48°

Wind

4 mph

Precipitation

0

Air Quality in Rialto

NOW
76 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 24.17 µg/m³
PM10 36.45 µg/m³
O3 0.043 ppm
NO2 2.9 ppb
SO2 0.4 ppb
CO 0.23 ppm
NH3 0.37 µg/m³
NO 1.11 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)
PM2.524.17 µg/m³
PM1036.45 µg/m³
O383.64 µg/m³
NO25.45 µg/m³
SO21.02 µg/m³
CO263.6 µg/m³
NH30.37 µg/m³
NO1.11 µg/m³