Hourly Weather | Today Friday, November 21, 2025
Concord, California
9 AM
Sunny Weather
52°
Feels Like 54°
0
Humidity: 70%
Wind: 5 mph
UV Index: 2
10 AM
Cloudy Weather
55°
Feels Like 59°
0
Humidity: 58%
Wind: 5 mph
UV Index: 2
11 AM
Cloudy Weather
59°
Feels Like 63°
0
Humidity: 52%
Wind: 5 mph
UV Index: 3
12 PM
Cloudy Weather
61°
Feels Like 64°
0
Humidity: 49%
Wind: 6 mph
UV Index: 3
1 PM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 48%
Wind: 6 mph
UV Index: 3
2 PM
Cloudy Weather
64°
Feels Like 68°
0
Humidity: 45%
Wind: 5 mph
UV Index: 2
3 PM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 47%
Wind: 5 mph
UV Index: 2
4 PM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 50%
Wind: 5 mph
UV Index: 1
5 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 57%
Wind: 4 mph
UV Index: 0
6 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 67%
Wind: 2 mph
UV Index: 0
7 PM
Night
54°
Feels Like 55°
0
Humidity: 77%
Wind: 2 mph
UV Index: 0
8 PM
Night
52°
Feels Like 54°
0
Humidity: 81%
Wind: 2 mph
UV Index: 0
9 PM
Night
52°
Feels Like 52°
0
Humidity: 83%
Wind: 2 mph
UV Index: 0
10 PM
Night
50°
Feels Like 52°
0
Humidity: 85%
Wind: 2 mph
UV Index: 0
11 PM
Night
48°
Feels Like 50°
0
Humidity: 87%
Wind: 2 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.75 µg/m³
  • PM10: 5.73 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.92 µg/m³
  • PM10: 5.93 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

11 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.1 µg/m³
  • PM10: 6.14 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

12 PM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.6 µg/m³
  • PM10: 6.79 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

1 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.16 µg/m³
  • PM10: 7.36 µg/m³
  • O3: 0.038 ppm
  • NO2: 2 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.45 µg/m³
  • PM10: 7.52 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.44 µg/m³
  • PM10: 7.35 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.28 µg/m³
  • PM10: 7.02 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.21 µg/m³
  • PM10: 6.94 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.28 µg/m³
  • PM10: 7.17 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.41 µg/m³
  • PM10: 7.58 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.61 µg/m³
  • PM10: 8.13 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.87 µg/m³
  • PM10: 8.71 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.12 µg/m³
  • PM10: 9.29 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.32 µg/m³
  • PM10: 9.78 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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