Hourly Weather | Today Tuesday, September 1, 2026
Waldorf, Maryland
12 PM
Cloudy Weather
88°
Feels Like 100°
14
Humidity: 59%
UV Index: 7
Wind: 7 mph
1 PM
Cloudy Weather
90°
Feels Like 100°
18
Humidity: 53%
UV Index: 7
Wind: 7 mph
2 PM
Cloudy Weather
91°
Feels Like 100°
34
Humidity: 49%
UV Index: 7
Wind: 7 mph
3 PM
Cloudy Weather
91°
Feels Like 99°
34
Humidity: 47%
UV Index: 5
Wind: 8 mph
4 PM
Cloudy Weather
93°
Feels Like 100°
39
Humidity: 45%
UV Index: 4
Wind: 8 mph
5 PM
Cloudy Weather
91°
Feels Like 97°
49
Humidity: 48%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
91°
Feels Like 95°
49
Humidity: 51%
UV Index: 1
Wind: 7 mph
7 PM
Sunny with a Chance of Thunderstorms
88°
Feels Like 91°
61
Humidity: 68%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
84°
Feels Like 90°
23
Humidity: 68%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
82°
Feels Like 88°
18
Humidity: 75%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
79°
Feels Like 84°
18
Humidity: 81%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
77°
Feels Like 82°
18
Humidity: 85%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.13 µg/m³
  • PM10: 8.66 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

1 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.48 µg/m³
  • PM10: 7.89 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

2 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.76 µg/m³
  • PM10: 7.13 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.08 µg/m³
  • PM10: 6.42 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.58 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 5.59 µg/m³
  • O3: 0.053 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.

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

Pollutant Concentrations:

  • PM2.5: 5.26 µg/m³
  • PM10: 5.74 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 6.22 µg/m³
  • O3: 0.031 ppm
  • NO2: 4.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.7 µg/m³
  • PM10: 6.71 µg/m³
  • O3: 0.024 ppm
  • NO2: 6.1 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
25 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.89 µg/m³
  • PM10: 7.14 µg/m³
  • O3: 0.020 ppm
  • NO2: 6.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 PM
25 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.08 µg/m³
  • PM10: 7.5 µg/m³
  • O3: 0.016 ppm
  • NO2: 6.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

11 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.16 µg/m³
  • PM10: 7.65 µg/m³
  • O3: 0.013 ppm
  • NO2: 6.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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