Hourly Weather | Today › Saturday, October 10, 2026
Alexandria, Virginia
10 AM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 83%
UV Index: 2
Wind: 6 mph
11 AM
Cloudy Weather
64°
Feels Like 68°
0
Humidity: 72%
UV Index: 3
Wind: 6 mph
12 PM
Cloudy Weather
66°
Feels Like 72°
0
Humidity: 63%
UV Index: 4
Wind: 7 mph
1 PM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 57%
UV Index: 4
Wind: 7 mph
2 PM
Cloudy Weather
72°
Feels Like 73°
7
Humidity: 52%
UV Index: 4
Wind: 8 mph
3 PM
Cloudy Weather
70°
Feels Like 72°
7
Humidity: 55%
UV Index: 3
Wind: 8 mph
4 PM
Cloudy Weather
70°
Feels Like 72°
7
Humidity: 58%
UV Index: 2
Wind: 7 mph
5 PM
Cloudy Weather
68°
Feels Like 68°
7
Humidity: 64%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
66°
Feels Like 66°
7
Humidity: 66%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Night
66°
Feels Like 63°
7
Humidity: 71%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
64°
Feels Like 63°
7
Humidity: 76%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
63°
Feels Like 63°
7
Humidity: 80%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
63°
Feels Like 61°
7
Humidity: 83%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
63°
Feels Like 61°
7
Humidity: 86%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.44 µg/m³
  • PM10: 14.98 µg/m³
  • O3: 0.025 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

11 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.23 µg/m³
  • PM10: 15.92 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

12 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.75 µg/m³
  • PM10: 17.48 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

1 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.01 µg/m³
  • PM10: 17.66 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.25 µg/m³
  • PM10: 17.87 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

3 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.2 µg/m³
  • PM10: 17.52 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

4 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.52 µg/m³
  • PM10: 16.31 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.48 µg/m³
  • PM10: 14.95 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.78 µg/m³
  • PM10: 13.09 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.1 µg/m³
  • PM10: 11.36 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.93 µg/m³
  • PM10: 10.21 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.94 µg/m³
  • PM10: 9.22 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.95 µg/m³
  • PM10: 8.19 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.94 µg/m³
  • PM10: 7.14 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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