Hourly Weather | Today Friday, September 18, 2026
Concord, California
7 AM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 91%
UV Index: 0
Wind: 7 mph
8 AM
Sunny Weather
57°
Feels Like 57°
0
Humidity: 90%
UV Index: 1
Wind: 6 mph
9 AM
Sunny Weather
61°
Feels Like 63°
0
Humidity: 81%
UV Index: 2
Wind: 6 mph
10 AM
Sunny Weather
66°
Feels Like 68°
0
Humidity: 70%
UV Index: 3
Wind: 6 mph
11 AM
Sunny Weather
70°
Feels Like 75°
0
Humidity: 60%
UV Index: 4
Wind: 6 mph
12 PM
Sunny Weather
73°
Feels Like 79°
0
Humidity: 51%
UV Index: 5
Wind: 7 mph
1 PM
Sunny Weather
79°
Feels Like 82°
0
Humidity: 43%
UV Index: 6
Wind: 8 mph
2 PM
Sunny Weather
81°
Feels Like 84°
0
Humidity: 38%
UV Index: 5
Wind: 8 mph
3 PM
Sunny Weather
82°
Feels Like 84°
0
Humidity: 35%
UV Index: 4
Wind: 9 mph
4 PM
Sunny Weather
82°
Feels Like 82°
0
Humidity: 34%
UV Index: 3
Wind: 10 mph
5 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 32%
UV Index: 2
Wind: 12 mph
6 PM
Sunny Weather
82°
Feels Like 79°
0
Humidity: 37%
UV Index: 1
Wind: 10 mph
7 PM
Sunny Weather
79°
Feels Like 75°
0
Humidity: 43%
UV Index: 0
Wind: 9 mph
8 PM
Night
73°
Feels Like 72°
0
Humidity: 51%
UV Index: 0
Wind: 8 mph
9 PM
Night
72°
Feels Like 68°
0
Humidity: 57%
UV Index: 0
Wind: 8 mph
10 PM
Night
68°
Feels Like 66°
0
Humidity: 63%
UV Index: 0
Wind: 8 mph
11 PM
Night
66°
Feels Like 63°
0
Humidity: 70%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.99 µg/m³
  • PM10: 18.1 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

8 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.95 µg/m³
  • PM10: 18.1 µg/m³
  • O3: 0.037 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 17.91 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.82 µg/m³
  • PM10: 17.68 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.77 µg/m³
  • PM10: 17.41 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.83 µg/m³
  • PM10: 17.34 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.04 µg/m³
  • PM10: 17.41 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.23 µg/m³
  • PM10: 17.34 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.23 µg/m³
  • PM10: 16.92 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.28 µg/m³
  • PM10: 16.9 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.32 µg/m³
  • PM10: 17.06 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.27 µg/m³
  • PM10: 17.18 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.06 µg/m³
  • PM10: 17.24 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.65 µg/m³
  • PM10: 17.08 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.18 µg/m³
  • PM10: 16.82 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.87 µg/m³
  • PM10: 16.84 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.69 µg/m³
  • PM10: 17.13 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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