Hourly Weather | Today Monday, April 6, 2026
Rancho Cucamonga, California
8 AM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 54%
UV Index: 1
Wind: 6 mph
9 AM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 49%
UV Index: 2
Wind: 6 mph
10 AM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 42%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
72°
Feels Like 77°
0
Humidity: 36%
UV Index: 5
Wind: 7 mph
12 PM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 31%
UV Index: 7
Wind: 8 mph
1 PM
Cloudy Weather
77°
Feels Like 82°
0
Humidity: 28%
UV Index: 8
Wind: 9 mph
2 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 26%
UV Index: 7
Wind: 10 mph
3 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 26%
UV Index: 5
Wind: 10 mph
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 29%
UV Index: 4
Wind: 12 mph
5 PM
Cloudy Weather
77°
Feels Like 75°
0
Humidity: 33%
UV Index: 2
Wind: 12 mph
6 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 36%
UV Index: 1
Wind: 10 mph
7 PM
Cloudy Weather
73°
Feels Like 70°
0
Humidity: 41%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 47%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 54%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 62%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 68%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 14.29 µg/m³
  • PM10: 29.63 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

9 AM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 13.23 µg/m³
  • PM10: 28.84 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 AM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 12.41 µg/m³
  • PM10: 28.08 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 AM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.93 µg/m³
  • PM10: 27.41 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

12 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.76 µg/m³
  • PM10: 27.08 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

1 PM
59 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.68 µg/m³
  • PM10: 26.89 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

2 PM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.58 µg/m³
  • PM10: 26.75 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.26 µg/m³
  • PM10: 26.55 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.61 µg/m³
  • PM10: 25.9 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

5 PM
66 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.83 µg/m³
  • PM10: 24.78 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
68 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.96 µg/m³
  • PM10: 23.27 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
66 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.99 µg/m³
  • PM10: 21.85 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.18 µg/m³
  • PM10: 20.75 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.67 µg/m³
  • PM10: 20.14 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.43 µg/m³
  • PM10: 19.89 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

11 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.35 µg/m³
  • PM10: 19.83 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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