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Hourly Weather | Today | Thursday, September 4, 2025
Norwalk, California
5 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
70°
Feels Like 70°
0
Humidity: 88%
Wind: 4 mph
UV Index: 0
6 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
68°
Feels Like 70°
0
Humidity: 89%
Wind: 4 mph
UV Index: 0
7 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
70°
Feels Like 72°
0
Humidity: 83%
Wind: 4 mph
UV Index: 3
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
72°
Feels Like 73°
0
Humidity: 77%
Wind: 4 mph
UV Index: 5
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
75°
Feels Like 79°
0
Humidity: 69%
Wind: 5 mph
UV Index: 17
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 86°
0
Humidity: 60%
Wind: 5 mph
UV Index: 38
11 AM
Sunny WeatherSunny weather, clear skies and sunny weather.
82°
Feels Like 90°
0
Humidity: 52%
Wind: 6 mph
UV Index: 52
12 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
86°
Feels Like 93°
0
Humidity: 47%
Wind: 7 mph
UV Index: 73
1 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
88°
Feels Like 95°
0
Humidity: 44%
Wind: 8 mph
UV Index: 81
2 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
90°
Feels Like 95°
0
Humidity: 40%
Wind: 9 mph
UV Index: 73
3 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
88°
Feels Like 91°
0
Humidity: 41%
Wind: 9 mph
UV Index: 52
4 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
88°
Feels Like 90°
0
Humidity: 40%
Wind: 9 mph
UV Index: 38
5 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
86°
Feels Like 86°
0
Humidity: 42%
Wind: 9 mph
UV Index: 24
6 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
84°
Feels Like 82°
0
Humidity: 45%
Wind: 8 mph
UV Index: 13
7 PM
Sunny WeatherSunny weather, clear skies and sunny weather.
81°
Feels Like 79°
0
Humidity: 51%
Wind: 7 mph
UV Index: 3
8 PM
NightNighttime, with dark skies and stars or a moon visible.
77°
Feels Like 75°
0
Humidity: 60%
Wind: 6 mph
UV Index: 0
9 PM
NightNighttime, with dark skies and stars or a moon visible.
75°
Feels Like 73°
0
Humidity: 68%
Wind: 6 mph
UV Index: 0
10 PM
NightNighttime, with dark skies and stars or a moon visible.
72°
Feels Like 72°
0
Humidity: 76%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
72°
Feels Like 72°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 21.58 µg/m³
  • PM10: 29.42 µg/m³
  • O₃: 11.88 ppb
  • NO₂: 26.37 ppb
  • SO₂: 3.72 ppb
  • CO: 215.24 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
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 24.38 µg/m³
  • PM10: 26.80 µg/m³
  • O₃: 10.56 ppb
  • NO₂: 26.67 ppb
  • SO₂: 4.62 ppb
  • CO: 255.16 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
60 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 26.31 µg/m³
  • PM10: 28.63 µg/m³
  • O₃: 11.51 ppb
  • NO₂: 26.31 ppb
  • SO₂: 4.88 ppb
  • CO: 281.69 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
61 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 27.04 µg/m³
  • PM10: 28.74 µg/m³
  • O₃: 12.45 ppb
  • NO₂: 25.96 ppb
  • SO₂: 5.14 ppb
  • CO: 308.22 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
62 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 21.88 µg/m³
  • PM10: 24.24 µg/m³
  • O₃: 20.28 ppb
  • NO₂: 23.69 ppb
  • SO₂: 5.64 ppb
  • CO: 275.73 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
63 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.79 µg/m³
  • PM10: 23.44 µg/m³
  • O₃: 28.10 ppb
  • NO₂: 21.43 ppb
  • SO₂: 6.14 ppb
  • CO: 243.23 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
64 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.26 µg/m³
  • PM10: 23.01 µg/m³
  • O₃: 35.92 ppb
  • NO₂: 19.16 ppb
  • SO₂: 6.63 ppb
  • CO: 210.74 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
65 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.08 µg/m³
  • PM10: 22.91 µg/m³
  • O₃: 41.68 ppb
  • NO₂: 16.81 ppb
  • SO₂: 6.61 ppb
  • CO: 198.66 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
65 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.32 µg/m³
  • PM10: 22.96 µg/m³
  • O₃: 47.44 ppb
  • NO₂: 14.46 ppb
  • SO₂: 6.60 ppb
  • CO: 186.57 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
66 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 20.19 µg/m³
  • PM10: 22.57 µg/m³
  • O₃: 53.20 ppb
  • NO₂: 12.11 ppb
  • SO₂: 6.58 ppb
  • CO: 174.49 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
67 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 19.34 µg/m³
  • PM10: 21.55 µg/m³
  • O₃: 51.96 ppb
  • NO₂: 11.09 ppb
  • SO₂: 5.97 ppb
  • CO: 166.75 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
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 17.78 µg/m³
  • PM10: 19.93 µg/m³
  • O₃: 50.72 ppb
  • NO₂: 10.06 ppb
  • SO₂: 5.36 ppb
  • CO: 159.01 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
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 16.08 µg/m³
  • PM10: 18.15 µg/m³
  • O₃: 49.48 ppb
  • NO₂: 9.04 ppb
  • SO₂: 4.75 ppb
  • CO: 151.28 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
68 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.25 µg/m³
  • PM10: 16.28 µg/m³
  • O₃: 41.91 ppb
  • NO₂: 12.00 ppb
  • SO₂: 4.44 ppb
  • CO: 158.60 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
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.20 µg/m³
  • PM10: 15.06 µg/m³
  • O₃: 34.35 ppb
  • NO₂: 14.96 ppb
  • SO₂: 4.12 ppb
  • CO: 165.94 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
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 13.58 µg/m³
  • PM10: 15.39 µg/m³
  • O₃: 26.79 ppb
  • NO₂: 17.92 ppb
  • SO₂: 3.81 ppb
  • CO: 173.26 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
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 14.30 µg/m³
  • PM10: 16.11 µg/m³
  • O₃: 22.10 ppb
  • NO₂: 21.16 ppb
  • SO₂: 3.97 ppb
  • CO: 183.70 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
69 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.36 µg/m³
  • PM10: 17.13 µg/m³
  • O₃: 17.41 ppb
  • NO₂: 24.41 ppb
  • SO₂: 4.12 ppb
  • CO: 194.13 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