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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today | Thursday, September 4, 2025
Downey, California
5 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
70°
Feels Like 70°
0
Humidity: 94%
Wind: 4 mph
UV Index: 0
6 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
68°
Feels Like 68°
0
Humidity: 90%
Wind: 4 mph
UV Index: 0
7 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
70°
Feels Like 72°
0
Humidity: 84%
Wind: 4 mph
UV Index: 3
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
72°
Feels Like 75°
0
Humidity: 78%
Wind: 4 mph
UV Index: 13
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 81°
0
Humidity: 69%
Wind: 4 mph
UV Index: 24
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 86°
0
Humidity: 60%
Wind: 5 mph
UV Index: 38
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 90°
0
Humidity: 53%
Wind: 6 mph
UV Index: 52
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
86°
Feels Like 93°
0
Humidity: 48%
Wind: 7 mph
UV Index: 73
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 93°
0
Humidity: 44%
Wind: 8 mph
UV Index: 81
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 93°
0
Humidity: 42%
Wind: 9 mph
UV Index: 73
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 90°
0
Humidity: 42%
Wind: 9 mph
UV Index: 52
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
86°
Feels Like 88°
0
Humidity: 43%
Wind: 9 mph
UV Index: 38
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 82°
0
Humidity: 46%
Wind: 9 mph
UV Index: 24
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 81°
0
Humidity: 50%
Wind: 8 mph
UV Index: 13
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 77°
0
Humidity: 56%
Wind: 7 mph
UV Index: 3
8 PM
NightNighttime, with dark skies and stars or a moon visible.
75°
Feels Like 75°
0
Humidity: 63%
Wind: 6 mph
UV Index: 0
9 PM
NightNighttime, with dark skies and stars or a moon visible.
73°
Feels Like 73°
0
Humidity: 69%
Wind: 6 mph
UV Index: 0
10 PM
NightNighttime, with dark skies and stars or a moon visible.
72°
Feels Like 72°
0
Humidity: 77%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
72°
Feels Like 72°
0
Humidity: 79%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 23.90 µg/m³
  • PM10: 32.87 µg/m³
  • O₃: 9.94 ppb
  • NO₂: 27.29 ppb
  • SO₂: 3.61 ppb
  • CO: 224.56 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
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 24.85 µg/m³
  • PM10: 32.80 µg/m³
  • O₃: 10.52 ppb
  • NO₂: 27.08 ppb
  • SO₂: 3.96 ppb
  • CO: 250.25 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
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 28.83 µg/m³
  • PM10: 31.04 µg/m³
  • O₃: 9.69 ppb
  • NO₂: 28.06 ppb
  • SO₂: 4.93 ppb
  • CO: 298.63 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
64 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 29.50 µg/m³
  • PM10: 31.08 µg/m³
  • O₃: 10.94 ppb
  • NO₂: 27.38 ppb
  • SO₂: 5.18 ppb
  • CO: 325.32 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
66 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 23.32 µg/m³
  • PM10: 25.65 µg/m³
  • O₃: 19.42 ppb
  • NO₂: 24.81 ppb
  • SO₂: 5.82 ppb
  • CO: 288.31 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
66 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.79 µg/m³
  • PM10: 24.42 µg/m³
  • O₃: 27.90 ppb
  • NO₂: 22.24 ppb
  • SO₂: 6.45 ppb
  • CO: 251.30 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
67 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.05 µg/m³
  • PM10: 23.77 µg/m³
  • O₃: 36.38 ppb
  • NO₂: 19.67 ppb
  • SO₂: 7.09 ppb
  • CO: 214.29 ppb

Health Recommendations:

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

12 PM
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.64 µg/m³
  • PM10: 23.39 µg/m³
  • O₃: 42.14 ppb
  • NO₂: 17.19 ppb
  • SO₂: 7.02 ppb
  • CO: 201.24 ppb

Health Recommendations:

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

1 PM
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.65 µg/m³
  • PM10: 23.16 µg/m³
  • O₃: 47.91 ppb
  • NO₂: 14.70 ppb
  • SO₂: 6.95 ppb
  • CO: 188.19 ppb

Health Recommendations:

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

2 PM
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.35 µg/m³
  • PM10: 22.57 µg/m³
  • O₃: 53.67 ppb
  • NO₂: 12.22 ppb
  • SO₂: 6.88 ppb
  • CO: 175.14 ppb

Health Recommendations:

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

3 PM
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.31 µg/m³
  • PM10: 21.37 µg/m³
  • O₃: 52.29 ppb
  • NO₂: 11.11 ppb
  • SO₂: 6.14 ppb
  • CO: 166.89 ppb

Health Recommendations:

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

4 PM
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 17.60 µg/m³
  • PM10: 19.66 µg/m³
  • O₃: 50.91 ppb
  • NO₂: 10.00 ppb
  • SO₂: 5.40 ppb
  • CO: 158.64 ppb

Health Recommendations:

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

5 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.73 µg/m³
  • PM10: 17.69 µg/m³
  • O₃: 49.53 ppb
  • NO₂: 8.89 ppb
  • SO₂: 4.66 ppb
  • CO: 150.39 ppb

Health Recommendations:

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

6 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.88 µg/m³
  • PM10: 15.78 µg/m³
  • O₃: 41.80 ppb
  • NO₂: 11.94 ppb
  • SO₂: 4.34 ppb
  • CO: 158.24 ppb

Health Recommendations:

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

7 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.94 µg/m³
  • PM10: 14.68 µg/m³
  • O₃: 34.06 ppb
  • NO₂: 14.99 ppb
  • SO₂: 4.02 ppb
  • CO: 166.09 ppb

Health Recommendations:

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

8 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.42 µg/m³
  • PM10: 15.09 µg/m³
  • O₃: 26.32 ppb
  • NO₂: 18.04 ppb
  • SO₂: 3.70 ppb
  • CO: 173.94 ppb

Health Recommendations:

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

9 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.22 µg/m³
  • PM10: 15.88 µg/m³
  • O₃: 20.90 ppb
  • NO₂: 21.88 ppb
  • SO₂: 3.89 ppb
  • CO: 186.59 ppb

Health Recommendations:

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

10 PM
70 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.44 µg/m³
  • PM10: 17.03 µg/m³
  • O₃: 15.48 ppb
  • NO₂: 25.71 ppb
  • SO₂: 4.08 ppb
  • CO: 199.25 ppb

Health Recommendations:

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

11 PM
71 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 18.10 µg/m³
  • PM10: 19.65 µg/m³
  • O₃: 10.06 ppb
  • NO₂: 29.54 ppb
  • SO₂: 4.27 ppb
  • CO: 211.91 ppb

Health Recommendations:

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

Current Real-Time Air Quality Report