Hourly Weather | Today Tuesday, April 7, 2026
Rockville, Maryland
10 AM
Cloudy Weather
48°
Feels Like 43°
0
Humidity: 43%
UV Index: 4
Wind: 16 mph
11 AM
Cloudy Weather
50°
Feels Like 46°
0
Humidity: 35%
UV Index: 5
Wind: 17 mph
12 PM
Cloudy Weather
52°
Feels Like 48°
0
Humidity: 30%
UV Index: 6
Wind: 17 mph
1 PM
Cloudy Weather
52°
Feels Like 50°
0
Humidity: 26%
UV Index: 7
Wind: 17 mph
2 PM
Sunny Weather
52°
Feels Like 48°
0
Humidity: 24%
UV Index: 6
Wind: 17 mph
3 PM
Sunny Weather
52°
Feels Like 48°
0
Humidity: 23%
UV Index: 5
Wind: 17 mph
4 PM
Sunny Weather
54°
Feels Like 48°
0
Humidity: 22%
UV Index: 4
Wind: 16 mph
5 PM
Sunny Weather
52°
Feels Like 45°
0
Humidity: 24%
UV Index: 2
Wind: 16 mph
6 PM
Sunny Weather
50°
Feels Like 45°
0
Humidity: 25%
UV Index: 1
Wind: 14 mph
7 PM
Sunny Weather
48°
Feels Like 43°
0
Humidity: 28%
UV Index: 0
Wind: 12 mph
8 PM
Night
46°
Feels Like 36°
0
Humidity: 32%
UV Index: 0
Wind: 16 mph
9 PM
Night
43°
Feels Like 32°
0
Humidity: 37%
UV Index: 0
Wind: 16 mph
10 PM
Night
41°
Feels Like 28°
0
Humidity: 41%
UV Index: 0
Wind: 16 mph
11 PM
Night
39°
Feels Like 27°
0
Humidity: 45%
UV Index: 0
Wind: 16 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.27 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.74 µg/m³
  • PM10: 2.52 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

12 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.49 µg/m³
  • PM10: 2.12 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 2.19 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.9 µg/m³
  • PM10: 2.39 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 2.64 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 2.88 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

5 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 3.06 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
70 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.74 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.77 µg/m³
  • PM10: 3.25 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 3.17 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.39 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 2.51 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.56 µg/m³
  • PM10: 2.14 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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