Hourly Weather | Today Thursday, October 30, 2025
Rialto, California
4 PM
Sunny Weather
90°
Feels Like 90°
0
Humidity: 12%
Wind: 7 mph
UV Index: 2
5 PM
Sunny Weather
86°
Feels Like 84°
0
Humidity: 13%
Wind: 8 mph
UV Index: 1
6 PM
Night
82°
Feels Like 81°
0
Humidity: 16%
Wind: 7 mph
UV Index: 0
7 PM
Night
79°
Feels Like 75°
0
Humidity: 22%
Wind: 6 mph
UV Index: 0
8 PM
Night
75°
Feels Like 73°
0
Humidity: 29%
Wind: 6 mph
UV Index: 0
9 PM
Night
72°
Feels Like 70°
0
Humidity: 34%
Wind: 5 mph
UV Index: 0
10 PM
Night
70°
Feels Like 66°
0
Humidity: 37%
Wind: 5 mph
UV Index: 0
11 PM
Night
66°
Feels Like 64°
0
Humidity: 41%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

4 PM
86 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 28.75 µg/m³
  • PM10: 41.74 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
84 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.73 µg/m³
  • PM10: 40.93 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
83 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.25 µg/m³
  • PM10: 40.67 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
82 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.19 µg/m³
  • PM10: 40.71 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
82 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.18 µg/m³
  • PM10: 40.92 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
82 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.14 µg/m³
  • PM10: 41.31 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
82 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 27.14 µg/m³
  • PM10: 41.78 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
82 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 26.86 µg/m³
  • PM10: 41.96 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.