Hourly Weather | Today Monday, September 21, 2026
Dale City, Virginia
4 PM
Cloudy Weather
73°
Feels Like 73°
49
Humidity: 73%
UV Index: 1
Wind: 7 mph
5 PM
Cloudy Weather
72°
Feels Like 72°
49
Humidity: 76%
UV Index: 0
Wind: 7 mph
6 PM
Stormy Weather
72°
Feels Like 66°
61
Humidity: 78%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Weather
70°
Feels Like 68°
49
Humidity: 82%
UV Index: 0
Wind: 7 mph
8 PM
Stormy Weather
72°
Feels Like 66°
54
Humidity: 77%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
70°
Feels Like 66°
49
Humidity: 83%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
68°
Feels Like 66°
45
Humidity: 85%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
68°
Feels Like 66°
47
Humidity: 87%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.27 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.77 µg/m³
  • PM10: 6.46 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 PM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.36 µg/m³
  • PM10: 7.09 µg/m³
  • O3: 0.028 ppm
  • NO2: 3 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

7 PM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 7.51 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

8 PM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.06 µg/m³
  • PM10: 7.83 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

9 PM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.2 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.026 ppm
  • NO2: 3 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.39 µg/m³
  • PM10: 8 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

11 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.46 µg/m³
  • PM10: 8.12 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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