Hourly Weather | Today Monday, September 22, 2025
Rancho Cucamonga, California
5 AM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 65%
Wind: 2 mph
UV Index: 0
6 AM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 67%
Wind: 2 mph
UV Index: 0
7 AM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 69%
Wind: 2 mph
UV Index: 0
8 AM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 64%
Wind: 2 mph
UV Index: 10
9 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 58%
Wind: 2 mph
UV Index: 20
10 AM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 53%
Wind: 4 mph
UV Index: 32
11 AM
Cloudy Weather
81°
Feels Like 86°
0
Humidity: 50%
Wind: 4 mph
UV Index: 45
12 PM
Cloudy Weather
82°
Feels Like 90°
0
Humidity: 44%
Wind: 5 mph
UV Index: 57
1 PM
Cloudy Weather
86°
Feels Like 91°
0
Humidity: 39%
Wind: 6 mph
UV Index: 64
2 PM
Cloudy Weather
88°
Feels Like 93°
0
Humidity: 35%
Wind: 7 mph
UV Index: 57
3 PM
Cloudy Weather
90°
Feels Like 91°
0
Humidity: 33%
Wind: 7 mph
UV Index: 45
4 PM
Cloudy Weather
88°
Feels Like 90°
0
Humidity: 34%
Wind: 8 mph
UV Index: 32
5 PM
Cloudy Weather
88°
Feels Like 86°
0
Humidity: 36%
Wind: 8 mph
UV Index: 20
6 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 40%
Wind: 8 mph
UV Index: 10
7 PM
Cloudy Night
82°
Feels Like 79°
0
Humidity: 46%
Wind: 7 mph
UV Index: 0
8 PM
Cloudy Night
79°
Feels Like 77°
0
Humidity: 52%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
75°
Feels Like 75°
0
Humidity: 56%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 60%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 59%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
72 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 33.37 µg/m³
  • PM10: 33.57 µg/m³
  • O₃: 14.13 ppb
  • NO₂: 26.06 ppb
  • SO₂: 5.58 ppb
  • CO: 365.92 ppb

Health Recommendations:

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

6 AM
74 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 33.42 µg/m³
  • PM10: 33.46 µg/m³
  • O₃: 14.52 ppb
  • NO₂: 25.46 ppb
  • SO₂: 5.20 ppb
  • CO: 392.39 ppb

Health Recommendations:

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

7 AM
76 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 33.64 µg/m³
  • PM10: 33.67 µg/m³
  • O₃: 14.91 ppb
  • NO₂: 24.86 ppb
  • SO₂: 4.82 ppb
  • CO: 418.86 ppb

Health Recommendations:

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

8 AM
77 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 33.45 µg/m³
  • PM10: 33.45 µg/m³
  • O₃: 15.29 ppb
  • NO₂: 24.26 ppb
  • SO₂: 4.44 ppb
  • CO: 445.34 ppb

Health Recommendations:

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

9 AM
78 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 22.90 µg/m³
  • PM10: 23.05 µg/m³
  • O₃: 33.10 ppb
  • NO₂: 17.62 ppb
  • SO₂: 4.15 ppb
  • CO: 356.14 ppb

Health Recommendations:

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

10 AM
79 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.50 µg/m³
  • PM10: 19.15 µg/m³
  • O₃: 50.91 ppb
  • NO₂: 10.98 ppb
  • SO₂: 3.86 ppb
  • CO: 266.95 ppb

Health Recommendations:

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

11 AM
79 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.83 µg/m³
  • PM10: 16.66 µg/m³
  • O₃: 68.72 ppb
  • NO₂: 4.34 ppb
  • SO₂: 3.57 ppb
  • CO: 177.75 ppb

Health Recommendations:

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