Hourly Weather | Today Thursday, February 5, 2026
Fontana, California
7 PM
Rainy Weather
72°
Feels Like 70°
40
Humidity: 33%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
66°
Feels Like 64°
37
Humidity: 40%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
64°
Feels Like 63°
33
Humidity: 45%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
63°
Feels Like 61°
32
Humidity: 51%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
61°
Feels Like 61°
32
Humidity: 53%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 PM
156 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 67.53 µg/m³
  • PM10: 93.81 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.31 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

8 PM
155 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 64.15 µg/m³
  • PM10: 92.7 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.29 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

9 PM
152 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 59.07 µg/m³
  • PM10: 88.43 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.27 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

10 PM
145 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 53.38 µg/m³
  • PM10: 82.68 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

11 PM
130 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 47.47 µg/m³
  • PM10: 76.17 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.23 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.