Hourly Weather | Today Thursday, December 4, 2025
Antioch, California
3 AM
Cloudy Night
39°
Feels Like 39°
0
Humidity: 82%
Wind: 5 mph
UV Index: 0
4 AM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 84%
Wind: 5 mph
UV Index: 0
5 AM
Cloudy Night
39°
Feels Like 37°
0
Humidity: 87%
Wind: 5 mph
UV Index: 0
6 AM
Cloudy Night
37°
Feels Like 37°
0
Humidity: 88%
Wind: 5 mph
UV Index: 0
7 AM
Night
37°
Feels Like 37°
0
Humidity: 92%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy Weather
39°
Feels Like 41°
0
Humidity: 96%
Wind: 5 mph
UV Index: 1
9 AM
Cloudy Weather
43°
Feels Like 45°
0
Humidity: 89%
Wind: 5 mph
UV Index: 1
10 AM
Cloudy Weather
45°
Feels Like 48°
0
Humidity: 83%
Wind: 5 mph
UV Index: 2
11 AM
Cloudy Weather
48°
Feels Like 52°
0
Humidity: 77%
Wind: 5 mph
UV Index: 2
12 PM
Cloudy Weather
52°
Feels Like 54°
0
Humidity: 71%
Wind: 6 mph
UV Index: 3
1 PM
Cloudy Weather
52°
Feels Like 55°
0
Humidity: 69%
Wind: 6 mph
UV Index: 2
2 PM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 67%
Wind: 6 mph
UV Index: 2
3 PM
Cloudy Weather
54°
Feels Like 57°
0
Humidity: 65%
Wind: 5 mph
UV Index: 1
4 PM
Cloudy Weather
52°
Feels Like 54°
0
Humidity: 70%
Wind: 5 mph
UV Index: 1
5 PM
Cloudy Night
50°
Feels Like 50°
0
Humidity: 77%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 82%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 87%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 89%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 89%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 45°
0
Humidity: 88%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 88%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.54 µg/m³
  • PM10: 13.1 µg/m³
  • O3: 0.019 ppm
  • NO2: 11.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

4 AM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.18 µg/m³
  • PM10: 13.92 µg/m³
  • O3: 0.018 ppm
  • NO2: 11.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.89 µg/m³
  • PM10: 14.85 µg/m³
  • O3: 0.017 ppm
  • NO2: 12.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

6 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.64 µg/m³
  • PM10: 15.89 µg/m³
  • O3: 0.016 ppm
  • NO2: 13.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

7 AM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.64 µg/m³
  • PM10: 17.15 µg/m³
  • O3: 0.015 ppm
  • NO2: 15.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.63 µg/m³
  • PM10: 18.5 µg/m³
  • O3: 0.013 ppm
  • NO2: 17.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.29 µg/m³
  • PM10: 19.69 µg/m³
  • O3: 0.015 ppm
  • NO2: 16.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.67 µg/m³
  • PM10: 20.52 µg/m³
  • O3: 0.018 ppm
  • NO2: 14.7 ppb
  • SO2: 1.1 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.73 µg/m³
  • PM10: 21.79 µg/m³
  • O3: 0.022 ppm
  • NO2: 13.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.89 µg/m³
  • PM10: 24.17 µg/m³
  • O3: 0.025 ppm
  • NO2: 13.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 18.57 µg/m³
  • PM10: 27.08 µg/m³
  • O3: 0.029 ppm
  • NO2: 14 ppb
  • SO2: 1.8 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.67 µg/m³
  • PM10: 29.22 µg/m³
  • O3: 0.032 ppm
  • NO2: 14.6 ppb
  • SO2: 1.9 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.75 µg/m³
  • PM10: 30.28 µg/m³
  • O3: 0.033 ppm
  • NO2: 15.2 ppb
  • SO2: 2 ppb
  • CO: 0.29 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: 22.03 µg/m³
  • PM10: 30.57 µg/m³
  • O3: 0.032 ppm
  • NO2: 16.9 ppb
  • SO2: 2 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.3 µg/m³
  • PM10: 29.73 µg/m³
  • O3: 0.029 ppm
  • NO2: 19.4 ppb
  • SO2: 1.8 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.95 µg/m³
  • PM10: 29.27 µg/m³
  • O3: 0.026 ppm
  • NO2: 19.8 ppb
  • SO2: 1.5 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.62 µg/m³
  • PM10: 28.74 µg/m³
  • O3: 0.023 ppm
  • NO2: 19.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.43 µg/m³
  • PM10: 28.48 µg/m³
  • O3: 0.020 ppm
  • NO2: 20.4 ppb
  • SO2: 1 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.24 µg/m³
  • PM10: 28.42 µg/m³
  • O3: 0.018 ppm
  • NO2: 21 ppb
  • SO2: 0.9 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 19.72 µg/m³
  • PM10: 27.98 µg/m³
  • O3: 0.017 ppm
  • NO2: 20.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 18.44 µg/m³
  • PM10: 26.49 µg/m³
  • O3: 0.017 ppm
  • NO2: 19.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.30 ppm

Health Recommendations:

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