Hourly Weather | Today Thursday, February 26, 2026
Alexandria, Virginia
1 AM
Cloudy Night
46°
Feels Like 41°
0
Humidity: 62%
UV Index: 0
Wind: 8 mph
2 AM
Cloudy Night
45°
Feels Like 41°
0
Humidity: 64%
UV Index: 0
Wind: 7 mph
3 AM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 67%
UV Index: 0
Wind: 6 mph
4 AM
Cloudy Weather
43°
Feels Like 39°
0
Humidity: 69%
UV Index: 0
Wind: 6 mph
5 AM
Cloudy Weather
41°
Feels Like 39°
0
Humidity: 71%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 72%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
39°
Feels Like 37°
49
Humidity: 75%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
41°
Feels Like 37°
49
Humidity: 67%
UV Index: 0
Wind: 6 mph
9 AM
Rainy Weather
43°
Feels Like 37°
56
Humidity: 63%
UV Index: 1
Wind: 7 mph
10 AM
Rainy Weather
45°
Feels Like 37°
58
Humidity: 61%
UV Index: 1
Wind: 8 mph
11 AM
Rainy Weather
45°
Feels Like 39°
58
Humidity: 60%
UV Index: 1
Wind: 8 mph
12 PM
Cloudy Weather
46°
Feels Like 43°
49
Humidity: 59%
UV Index: 1
Wind: 8 mph
1 PM
Rainy Weather
46°
Feels Like 41°
70
Humidity: 59%
UV Index: 1
Wind: 8 mph
2 PM
Rainy Weather
46°
Feels Like 43°
61
Humidity: 61%
UV Index: 1
Wind: 7 mph
3 PM
Rainy Weather
46°
Feels Like 39°
70
Humidity: 64%
UV Index: 1
Wind: 7 mph
4 PM
Cloudy Weather
45°
Feels Like 43°
40
Humidity: 64%
UV Index: 0
Wind: 7 mph
5 PM
Cloudy Weather
45°
Feels Like 43°
34
Humidity: 64%
UV Index: 0
Wind: 7 mph
6 PM
Cloudy Weather
45°
Feels Like 41°
24
Humidity: 66%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Weather
43°
Feels Like 43°
4
Humidity: 69%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
41°
Feels Like 41°
4
Humidity: 73%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
39°
Feels Like 39°
4
Humidity: 75%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
37°
Feels Like 39°
4
Humidity: 77%
UV Index: 0
Wind: 2 mph
11 PM
Cloudy Night
37°
Feels Like 37°
4
Humidity: 77%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.25 µg/m³
  • PM10: 5.23 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 AM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 4.55 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

3 AM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.28 µg/m³
  • PM10: 4.11 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

4 AM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.06 µg/m³
  • PM10: 3.88 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

5 AM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 3.91 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

6 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.68 µg/m³
  • PM10: 4.89 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.23 µg/m³
  • PM10: 5.67 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.55 µg/m³
  • PM10: 6.07 µg/m³
  • O3: 0.026 ppm
  • NO2: 6 ppb
  • SO2: 0.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.47 µg/m³
  • PM10: 5.95 µg/m³
  • O3: 0.026 ppm
  • NO2: 5.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.16 µg/m³
  • PM10: 5.47 µg/m³
  • O3: 0.028 ppm
  • NO2: 4 ppb
  • SO2: 0.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.28 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.028 ppm
  • NO2: 3.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.67 µg/m³
  • PM10: 5.9 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 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: 4.84 µg/m³
  • PM10: 5.8 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 6.25 µg/m³
  • O3: 0.043 ppm
  • NO2: 3.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.94 µg/m³
  • PM10: 7.07 µg/m³
  • O3: 0.042 ppm
  • NO2: 4.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 8.28 µg/m³
  • O3: 0.039 ppm
  • NO2: 5.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.95 µg/m³
  • PM10: 9.72 µg/m³
  • O3: 0.035 ppm
  • NO2: 7 ppb
  • SO2: 0.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.95 µg/m³
  • PM10: 11.12 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.19 µg/m³
  • PM10: 12.76 µg/m³
  • O3: 0.028 ppm
  • NO2: 8.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.62 µg/m³
  • PM10: 14.61 µg/m³
  • O3: 0.025 ppm
  • NO2: 9.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

10 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.16 µg/m³
  • PM10: 16.54 µg/m³
  • O3: 0.022 ppm
  • NO2: 9.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.26 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.71 µg/m³
  • PM10: 18.32 µg/m³
  • O3: 0.020 ppm
  • NO2: 10.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.27 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.