Hourly Weather | Today Tuesday, July 21, 2026
Dale City, Virginia
5 AM
Cloudy Weather
73°
Feels Like 79°
43
Humidity: 98%
UV Index: 0
Wind: 6 mph
6 AM
Stormy Weather
72°
Feels Like 73°
51
Humidity: 95%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
73°
Feels Like 79°
47
Humidity: 94%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
75°
Feels Like 81°
20
Humidity: 90%
UV Index: 0
Wind: 7 mph
9 AM
Cloudy Weather
77°
Feels Like 82°
20
Humidity: 86%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
79°
Feels Like 88°
20
Humidity: 81%
UV Index: 2
Wind: 7 mph
11 AM
Cloudy Weather
82°
Feels Like 91°
20
Humidity: 77%
UV Index: 3
Wind: 8 mph
12 PM
Cloudy Weather
84°
Feels Like 97°
20
Humidity: 71%
UV Index: 6
Wind: 8 mph
1 PM
Cloudy Weather
88°
Feels Like 100°
24
Humidity: 66%
UV Index: 9
Wind: 8 mph
2 PM
Cloudy Weather
90°
Feels Like 102°
33
Humidity: 61%
UV Index: 9
Wind: 8 mph
3 PM
Cloudy Weather
88°
Feels Like 99°
33
Humidity: 65%
UV Index: 5
Wind: 9 mph
4 PM
Cloudy Weather
84°
Feels Like 93°
39
Humidity: 70%
UV Index: 2
Wind: 10 mph
5 PM
Stormy Weather
82°
Feels Like 88°
63
Humidity: 82%
UV Index: 1
Wind: 10 mph
6 PM
Cloudy Weather
81°
Feels Like 88°
49
Humidity: 80%
UV Index: 1
Wind: 9 mph
7 PM
Stormy Weather
79°
Feels Like 81°
63
Humidity: 82%
UV Index: 0
Wind: 8 mph
8 PM
Stormy Weather
79°
Feels Like 79°
61
Humidity: 86%
UV Index: 0
Wind: 7 mph
9 PM
Stormy Weather
77°
Feels Like 81°
55
Humidity: 86%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
75°
Feels Like 81°
49
Humidity: 89%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
75°
Feels Like 81°
34
Humidity: 90%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.08 µg/m³
  • PM10: 5.35 µg/m³
  • O3: 0.015 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.96 µg/m³
  • PM10: 5.22 µg/m³
  • O3: 0.014 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 5.11 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.67 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.47 µg/m³
  • PM10: 4.8 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.3 µg/m³
  • PM10: 4.64 µg/m³
  • O3: 0.019 ppm
  • NO2: 1.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.35 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.23 µg/m³
  • PM10: 4.54 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 4.03 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 3.69 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 3.27 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 2.52 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.19 µg/m³
  • PM10: 2.26 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.11 µg/m³
  • PM10: 2.18 µg/m³
  • O3: 0.033 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 2.25 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.15 µg/m³
  • PM10: 2.24 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.07 µg/m³
  • PM10: 2.16 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.92 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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