Hourly Weather | Today Wednesday, August 12, 2026
Waldorf, Maryland
9 AM
Cloudy Weather
75°
Feels Like 84°
20
Humidity: 82%
UV Index: 3
Wind: 7 mph
10 AM
Cloudy Weather
79°
Feels Like 88°
20
Humidity: 73%
UV Index: 4
Wind: 7 mph
11 AM
Cloudy Weather
82°
Feels Like 91°
20
Humidity: 65%
UV Index: 6
Wind: 6 mph
12 PM
Cloudy Weather
84°
Feels Like 95°
20
Humidity: 61%
UV Index: 8
Wind: 7 mph
1 PM
Cloudy Weather
86°
Feels Like 99°
13
Humidity: 58%
UV Index: 9
Wind: 7 mph
2 PM
Cloudy Weather
88°
Feels Like 99°
0
Humidity: 56%
UV Index: 8
Wind: 7 mph
3 PM
Cloudy Weather
88°
Feels Like 97°
0
Humidity: 54%
UV Index: 6
Wind: 7 mph
4 PM
Cloudy Weather
90°
Feels Like 97°
0
Humidity: 52%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
88°
Feels Like 91°
0
Humidity: 54%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
86°
Feels Like 90°
0
Humidity: 57%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
84°
Feels Like 88°
0
Humidity: 62%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
82°
Feels Like 84°
7
Humidity: 69%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
79°
Feels Like 82°
7
Humidity: 75%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
75°
Feels Like 81°
7
Humidity: 82%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
75°
Feels Like 79°
7
Humidity: 84%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.74 µg/m³
  • PM10: 4.25 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.97 µg/m³
  • PM10: 4.43 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 4.99 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 4.79 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.21 µg/m³
  • PM10: 4.43 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.29 µg/m³
  • PM10: 4.49 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 4.31 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.75 µg/m³
  • PM10: 3.92 µg/m³
  • O3: 0.044 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.42 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.5 µg/m³
  • PM10: 3.8 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.8 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.52 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.3 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
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 4.01 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.6 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
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.64 µg/m³
  • PM10: 4.17 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 4.19 µg/m³
  • O3: 0.018 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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