Hourly Weather | Today Tuesday, July 21, 2026
Waldorf, Maryland
5 AM
Cloudy Weather
73°
Feels Like 79°
24
Humidity: 93%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Weather
73°
Feels Like 79°
19
Humidity: 94%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
73°
Feels Like 79°
19
Humidity: 97%
UV Index: 0
Wind: 7 mph
8 AM
Cloudy Weather
75°
Feels Like 81°
20
Humidity: 93%
UV Index: 0
Wind: 7 mph
9 AM
Cloudy Weather
79°
Feels Like 84°
20
Humidity: 88%
UV Index: 1
Wind: 8 mph
10 AM
Cloudy Weather
81°
Feels Like 88°
20
Humidity: 82%
UV Index: 1
Wind: 8 mph
11 AM
Cloudy Weather
82°
Feels Like 91°
20
Humidity: 78%
UV Index: 2
Wind: 8 mph
12 PM
Cloudy Weather
84°
Feels Like 95°
20
Humidity: 73%
UV Index: 3
Wind: 9 mph
1 PM
Cloudy Weather
86°
Feels Like 97°
24
Humidity: 68%
UV Index: 5
Wind: 9 mph
2 PM
Cloudy Weather
88°
Feels Like 99°
33
Humidity: 64%
UV Index: 5
Wind: 10 mph
3 PM
Cloudy Weather
88°
Feels Like 97°
33
Humidity: 67%
UV Index: 3
Wind: 12 mph
4 PM
Cloudy Weather
86°
Feels Like 93°
39
Humidity: 70%
UV Index: 2
Wind: 14 mph
5 PM
Stormy Weather
84°
Feels Like 90°
74
Humidity: 80%
UV Index: 1
Wind: 14 mph
6 PM
Stormy Weather
82°
Feels Like 84°
74
Humidity: 79%
UV Index: 0
Wind: 13 mph
7 PM
Cloudy Weather
81°
Feels Like 86°
49
Humidity: 83%
UV Index: 0
Wind: 12 mph
8 PM
Cloudy Weather
79°
Feels Like 84°
49
Humidity: 88%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
79°
Feels Like 84°
49
Humidity: 87%
UV Index: 0
Wind: 8 mph
10 PM
Stormy Weather
77°
Feels Like 79°
65
Humidity: 90%
UV Index: 0
Wind: 8 mph
11 PM
Stormy Weather
75°
Feels Like 79°
59
Humidity: 89%
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: 5.14 µg/m³
  • PM10: 5.53 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.8 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 AM
20 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 5.14 µg/m³
  • O3: 0.013 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 4.93 µg/m³
  • O3: 0.012 ppm
  • NO2: 2 ppb
  • SO2: 0.4 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: 4.45 µg/m³
  • PM10: 4.83 µg/m³
  • O3: 0.013 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.42 µg/m³
  • PM10: 4.81 µg/m³
  • O3: 0.016 ppm
  • NO2: 2 ppb
  • SO2: 0.6 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: 4.33 µg/m³
  • PM10: 4.73 µg/m³
  • O3: 0.019 ppm
  • NO2: 1.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.4 ppb
  • SO2: 0.7 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: 4.38 µg/m³
  • PM10: 4.74 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.13 µg/m³
  • PM10: 4.42 µg/m³
  • O3: 0.033 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 4.04 µg/m³
  • PM10: 4.3 µg/m³
  • O3: 0.034 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 3.98 µg/m³
  • PM10: 4.18 µg/m³
  • O3: 0.036 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 3.94 µg/m³
  • PM10: 4.09 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.5 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: 3.77 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 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: 3.44 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 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: 2.87 µg/m³
  • PM10: 2.97 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.8 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
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.67 µg/m³
  • PM10: 2.77 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.8 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
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.55 µg/m³
  • PM10: 2.65 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.8 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
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 2.5 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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