Hourly Weather | Today Wednesday, May 20, 2026
Antioch, California
3 PM
Cloudy Weather
88°
Feels Like 91°
0
Humidity: 18%
UV Index: 7
Wind: 10 mph
4 PM
Cloudy Weather
90°
Feels Like 90°
0
Humidity: 16%
UV Index: 5
Wind: 13 mph
5 PM
Cloudy Weather
90°
Feels Like 88°
0
Humidity: 15%
UV Index: 3
Wind: 14 mph
6 PM
Sunny Weather
88°
Feels Like 84°
0
Humidity: 16%
UV Index: 2
Wind: 14 mph
7 PM
Sunny Weather
84°
Feels Like 82°
0
Humidity: 19%
UV Index: 1
Wind: 12 mph
8 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 25%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
77°
Feels Like 73°
0
Humidity: 29%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
73°
Feels Like 70°
0
Humidity: 35%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 42%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 6.06 µg/m³
  • PM10: 13.91 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.89 µg/m³
  • PM10: 13.87 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

5 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.73 µg/m³
  • PM10: 13.83 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.68 µg/m³
  • PM10: 13.92 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.63 µg/m³
  • PM10: 13.92 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.56 µg/m³
  • PM10: 13.78 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.41 µg/m³
  • PM10: 13.34 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.3 µg/m³
  • PM10: 13.03 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 12.9 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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