Hourly Weather | Today Sunday, April 26, 2026
Downey, California
1 PM
Cloudy Weather
68°
Feels Like 72°
16
Humidity: 42%
UV Index: 5
Wind: 12 mph
2 PM
Cloudy Weather
70°
Feels Like 72°
7
Humidity: 42%
UV Index: 5
Wind: 13 mph
3 PM
Cloudy Weather
68°
Feels Like 70°
7
Humidity: 44%
UV Index: 4
Wind: 13 mph
4 PM
Cloudy Weather
68°
Feels Like 66°
7
Humidity: 44%
UV Index: 2
Wind: 13 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
7
Humidity: 47%
UV Index: 2
Wind: 12 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
7
Humidity: 50%
UV Index: 1
Wind: 10 mph
7 PM
Cloudy Weather
63°
Feels Like 61°
6
Humidity: 56%
UV Index: 1
Wind: 9 mph
8 PM
Cloudy Night
63°
Feels Like 59°
3
Humidity: 61%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
61°
Feels Like 57°
3
Humidity: 64%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
61°
Feels Like 57°
3
Humidity: 66%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
61°
Feels Like 59°
3
Humidity: 68%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.54 µg/m³
  • PM10: 1.55 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 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.

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

Pollutant Concentrations:

  • PM2.5: 0.54 µg/m³
  • PM10: 1.56 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.57 µg/m³
  • PM10: 1.66 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 1.86 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 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: 0.7 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.76 µg/m³
  • PM10: 2.3 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 2.45 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 2.43 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 2.35 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.76 µg/m³
  • PM10: 2.21 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 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.