Hourly Weather | Today Monday, September 21, 2026
Towson, Maryland
3 PM
Rainy Weather
70°
Feels Like 64°
85
Humidity: 69%
UV Index: 1
Wind: 8 mph
4 PM
Rainy Weather
68°
Feels Like 64°
77
Humidity: 74%
UV Index: 1
Wind: 7 mph
5 PM
Cloudy Weather
68°
Feels Like 66°
49
Humidity: 77%
UV Index: 1
Wind: 7 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
49
Humidity: 79%
UV Index: 0
Wind: 7 mph
7 PM
Rainy Weather
64°
Feels Like 61°
65
Humidity: 82%
UV Index: 0
Wind: 7 mph
8 PM
Rainy Weather
64°
Feels Like 61°
60
Humidity: 86%
UV Index: 0
Wind: 7 mph
9 PM
Rainy Weather
63°
Feels Like 61°
60
Humidity: 90%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
63°
Feels Like 61°
49
Humidity: 92%
UV Index: 0
Wind: 7 mph
11 PM
Rainy Weather
63°
Feels Like 59°
58
Humidity: 93%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.71 µg/m³
  • PM10: 6.61 µg/m³
  • O3: 0.033 ppm
  • NO2: 3 ppb
  • SO2: 1 ppb
  • CO: 0.20 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: 6.19 µg/m³
  • PM10: 7.03 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 6.99 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.81 µg/m³
  • PM10: 6.63 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.1 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 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: 5.57 µg/m³
  • PM10: 6.45 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.3 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 6.81 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.29 µg/m³
  • PM10: 7.26 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.31 µg/m³
  • PM10: 7.38 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.4 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.66 µg/m³
  • PM10: 7.04 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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