Hourly Weather | Today Wednesday, October 1, 2025
Fontana, California
12 PM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 51%
Wind: 6 mph
UV Index: 50
1 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 41%
Wind: 7 mph
UV Index: 55
2 PM
Cloudy Weather
81°
Feels Like 84°
0
Humidity: 37%
Wind: 8 mph
UV Index: 50
3 PM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 34%
Wind: 8 mph
UV Index: 41
4 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 36%
Wind: 9 mph
UV Index: 29
5 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 39%
Wind: 9 mph
UV Index: 19
6 PM
Cloudy Weather
79°
Feels Like 75°
0
Humidity: 44%
Wind: 9 mph
UV Index: 8
7 PM
Cloudy Night
75°
Feels Like 72°
0
Humidity: 51%
Wind: 8 mph
UV Index: 0
8 PM
Night
72°
Feels Like 68°
0
Humidity: 62%
Wind: 7 mph
UV Index: 0
9 PM
Night
68°
Feels Like 64°
0
Humidity: 68%
Wind: 7 mph
UV Index: 0
10 PM
Night
64°
Feels Like 63°
0
Humidity: 75%
Wind: 6 mph
UV Index: 0
11 PM
Night
64°
Feels Like 63°
0
Humidity: 78%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
56 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 16.25 µg/m³
  • PM10: 54.62 µg/m³
  • O₃: 39.13 ppb
  • NO₂: 21.80 ppb
  • SO₂: 1.33 ppb
  • CO: 335.37 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

1 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.72 µg/m³
  • PM10: 49.88 µg/m³
  • O₃: 42.68 ppb
  • NO₂: 19.70 ppb
  • SO₂: 1.48 ppb
  • CO: 315.84 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

2 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.83 µg/m³
  • PM10: 40.60 µg/m³
  • O₃: 49.79 ppb
  • NO₂: 15.51 ppb
  • SO₂: 1.79 ppb
  • CO: 276.76 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

3 PM
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.47 µg/m³
  • PM10: 31.84 µg/m³
  • O₃: 55.47 ppb
  • NO₂: 12.07 ppb
  • SO₂: 2.39 ppb
  • CO: 241.33 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.80 µg/m³
  • PM10: 27.98 µg/m³
  • O₃: 58.75 ppb
  • NO₂: 10.74 ppb
  • SO₂: 2.90 ppb
  • CO: 225.45 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 PM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.26 µg/m³
  • PM10: 25.94 µg/m³
  • O₃: 61.06 ppb
  • NO₂: 10.25 ppb
  • SO₂: 3.36 ppb
  • CO: 217.39 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.78 µg/m³
  • PM10: 24.77 µg/m³
  • O₃: 52.57 ppb
  • NO₂: 13.48 ppb
  • SO₂: 3.70 ppb
  • CO: 232.39 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
60 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 16.98 µg/m³
  • PM10: 17.49 µg/m³
  • O₃: 44.67 ppb
  • NO₂: 15.44 ppb
  • SO₂: 4.57 ppb
  • CO: 227.43 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
60 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.07 µg/m³
  • PM10: 18.51 µg/m³
  • O₃: 33.16 ppb
  • NO₂: 20.17 ppb
  • SO₂: 4.85 ppb
  • CO: 254.07 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.49 µg/m³
  • PM10: 19.93 µg/m³
  • O₃: 26.22 ppb
  • NO₂: 23.47 ppb
  • SO₂: 4.81 ppb
  • CO: 278.42 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.66 µg/m³
  • PM10: 22.06 µg/m³
  • O₃: 19.29 ppb
  • NO₂: 26.77 ppb
  • SO₂: 4.76 ppb
  • CO: 302.76 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 24.51 µg/m³
  • PM10: 24.88 µg/m³
  • O₃: 12.36 ppb
  • NO₂: 30.07 ppb
  • SO₂: 4.72 ppb
  • CO: 327.10 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.