Hourly Weather | Today Saturday, September 19, 2026
Pomona, California
3 AM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 94%
UV Index: 0
Wind: 4 mph
4 AM
Night
61°
Feels Like 61°
0
Humidity: 94%
UV Index: 0
Wind: 4 mph
5 AM
Night
59°
Feels Like 61°
0
Humidity: 94%
UV Index: 0
Wind: 2 mph
6 AM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 95%
UV Index: 0
Wind: 2 mph
7 AM
Cloudy Weather
57°
Feels Like 59°
0
Humidity: 97%
UV Index: 0
Wind: 2 mph
8 AM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 90%
UV Index: 1
Wind: 2 mph
9 AM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 76%
UV Index: 2
Wind: 2 mph
10 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 67%
UV Index: 3
Wind: 4 mph
11 AM
Cloudy Weather
73°
Feels Like 81°
0
Humidity: 59%
UV Index: 5
Wind: 5 mph
12 PM
Sunny Weather
79°
Feels Like 86°
0
Humidity: 50%
UV Index: 6
Wind: 5 mph
1 PM
Sunny Weather
82°
Feels Like 88°
0
Humidity: 43%
UV Index: 7
Wind: 6 mph
2 PM
Sunny Weather
84°
Feels Like 90°
0
Humidity: 39%
UV Index: 6
Wind: 7 mph
3 PM
Sunny Weather
88°
Feels Like 90°
0
Humidity: 36%
UV Index: 5
Wind: 8 mph
4 PM
Sunny Weather
86°
Feels Like 88°
0
Humidity: 38%
UV Index: 3
Wind: 8 mph
5 PM
Sunny Weather
84°
Feels Like 82°
0
Humidity: 41%
UV Index: 2
Wind: 9 mph
6 PM
Sunny Weather
81°
Feels Like 81°
0
Humidity: 46%
UV Index: 1
Wind: 8 mph
7 PM
Night
79°
Feels Like 75°
0
Humidity: 53%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
75°
Feels Like 73°
0
Humidity: 60%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
72°
Feels Like 70°
0
Humidity: 66%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
70°
Feels Like 68°
0
Humidity: 72%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 76%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.12 µg/m³
  • PM10: 23.55 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.99 µg/m³
  • PM10: 23.11 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.89 µg/m³
  • PM10: 22.84 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.85 µg/m³
  • PM10: 22.66 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.84 µg/m³
  • PM10: 22.5 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 22.39 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.96 µg/m³
  • PM10: 22.36 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.16 µg/m³
  • PM10: 22.46 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.45 µg/m³
  • PM10: 22.67 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.84 µg/m³
  • PM10: 23.08 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.31 µg/m³
  • PM10: 23.65 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.85 µg/m³
  • PM10: 24.41 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.47 µg/m³
  • PM10: 25.47 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.03 µg/m³
  • PM10: 26.63 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
50 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.39 µg/m³
  • PM10: 27.61 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

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

Pollutant Concentrations:

  • PM2.5: 11.39 µg/m³
  • PM10: 27.95 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.06 µg/m³
  • PM10: 28.18 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

8 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.42 µg/m³
  • PM10: 28.34 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.73 µg/m³
  • PM10: 28.43 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.12 µg/m³
  • PM10: 28.47 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.59 µg/m³
  • PM10: 28.48 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.