Hourly Weather | Today Thursday, December 4, 2025
Pomona, California
3 AM
Cloudy Night
48°
Feels Like 39°
0
Humidity: 46%
Wind: 18 mph
UV Index: 0
4 AM
Cloudy Night
48°
Feels Like 37°
0
Humidity: 52%
Wind: 18 mph
UV Index: 0
5 AM
Cloudy Night
46°
Feels Like 36°
0
Humidity: 53%
Wind: 17 mph
UV Index: 0
6 AM
Cloudy Night
45°
Feels Like 34°
0
Humidity: 56%
Wind: 16 mph
UV Index: 0
7 AM
Cloudy Weather
46°
Feels Like 37°
0
Humidity: 47%
Wind: 15 mph
UV Index: 0
8 AM
Cloudy Weather
48°
Feels Like 41°
0
Humidity: 48%
Wind: 14 mph
UV Index: 1
9 AM
Cloudy Weather
55°
Feels Like 50°
0
Humidity: 40%
Wind: 13 mph
UV Index: 2
10 AM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 33%
Wind: 14 mph
UV Index: 2
11 AM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 27%
Wind: 13 mph
UV Index: 3
12 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 22%
Wind: 14 mph
UV Index: 3
1 PM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 19%
Wind: 6 mph
UV Index: 3
2 PM
Cloudy Weather
72°
Feels Like 73°
0
Humidity: 18%
Wind: 4 mph
UV Index: 2
3 PM
Cloudy Weather
70°
Feels Like 72°
0
Humidity: 19%
Wind: 2 mph
UV Index: 2
4 PM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 23%
Wind: 1 mph
UV Index: 1
5 PM
Cloudy Night
64°
Feels Like 64°
0
Humidity: 26%
Wind: 1 mph
UV Index: 0
6 PM
Cloudy Night
61°
Feels Like 63°
0
Humidity: 30%
Wind: 1 mph
UV Index: 0
7 PM
Cloudy Night
57°
Feels Like 59°
0
Humidity: 35%
Wind: 4 mph
UV Index: 0
8 PM
Night
55°
Feels Like 54°
0
Humidity: 37%
Wind: 6 mph
UV Index: 0
9 PM
Night
54°
Feels Like 52°
0
Humidity: 40%
Wind: 7 mph
UV Index: 0
10 PM
Night
52°
Feels Like 48°
0
Humidity: 41%
Wind: 7 mph
UV Index: 0
11 PM
Night
52°
Feels Like 48°
0
Humidity: 41%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
77 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 24.68 µg/m³
  • PM10: 36.2 µg/m³
  • O3: 0.035 ppm
  • NO2: 10.5 ppb
  • SO2: 2.2 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

4 AM
72 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.39 µg/m³
  • PM10: 33.85 µg/m³
  • O3: 0.035 ppm
  • NO2: 9.4 ppb
  • SO2: 1.9 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

5 AM
61 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.94 µg/m³
  • PM10: 27.41 µg/m³
  • O3: 0.037 ppm
  • NO2: 7.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

6 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.78 µg/m³
  • PM10: 24.87 µg/m³
  • O3: 0.037 ppm
  • NO2: 6.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

7 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.19 µg/m³
  • PM10: 23.09 µg/m³
  • O3: 0.037 ppm
  • NO2: 6 ppb
  • SO2: 1.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

8 AM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.5 µg/m³
  • PM10: 21.27 µg/m³
  • O3: 0.038 ppm
  • NO2: 5.9 ppb
  • SO2: 1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

9 AM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.9 µg/m³
  • PM10: 19.54 µg/m³
  • O3: 0.040 ppm
  • NO2: 5.2 ppb
  • SO2: 1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

10 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.27 µg/m³
  • PM10: 18.84 µg/m³
  • O3: 0.042 ppm
  • NO2: 4.9 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.46 µg/m³
  • PM10: 18.97 µg/m³
  • O3: 0.044 ppm
  • NO2: 5 ppb
  • SO2: 1.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

12 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.62 µg/m³
  • PM10: 20.14 µg/m³
  • O3: 0.048 ppm
  • NO2: 5.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

1 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.73 µg/m³
  • PM10: 22.25 µg/m³
  • O3: 0.052 ppm
  • NO2: 5.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

2 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.06 µg/m³
  • PM10: 25.51 µg/m³
  • O3: 0.055 ppm
  • NO2: 6.2 ppb
  • SO2: 1.9 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

3 PM
66 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.43 µg/m³
  • PM10: 28.92 µg/m³
  • O3: 0.056 ppm
  • NO2: 8 ppb
  • SO2: 2.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

4 PM
71 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.88 µg/m³
  • PM10: 31.43 µg/m³
  • O3: 0.055 ppm
  • NO2: 9.9 ppb
  • SO2: 2.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

5 PM
73 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.79 µg/m³
  • PM10: 32.35 µg/m³
  • O3: 0.052 ppm
  • NO2: 11.2 ppb
  • SO2: 2.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

6 PM
72 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.27 µg/m³
  • PM10: 31.8 µg/m³
  • O3: 0.050 ppm
  • NO2: 9.9 ppb
  • SO2: 2.4 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

7 PM
67 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 19.94 µg/m³
  • PM10: 29.25 µg/m³
  • O3: 0.049 ppm
  • NO2: 7.8 ppb
  • SO2: 2.1 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

8 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.12 µg/m³
  • PM10: 24.8 µg/m³
  • O3: 0.049 ppm
  • NO2: 5.5 ppb
  • SO2: 1.7 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

9 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.89 µg/m³
  • PM10: 20.54 µg/m³
  • O3: 0.049 ppm
  • NO2: 4 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.85 µg/m³
  • PM10: 16.11 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.8 ppb
  • SO2: 1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.65 µg/m³
  • PM10: 12.46 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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