Hourly Weather | Today Tuesday, September 1, 2026
Towson, Maryland
12 PM
Rainy Weather
88°
Feels Like 91°
44
Humidity: 59%
UV Index: 2
Wind: 7 mph
1 PM
Cloudy Weather
88°
Feels Like 99°
40
Humidity: 55%
UV Index: 7
Wind: 8 mph
2 PM
Cloudy Weather
90°
Feels Like 99°
34
Humidity: 52%
UV Index: 6
Wind: 8 mph
3 PM
Cloudy Weather
90°
Feels Like 97°
34
Humidity: 50%
UV Index: 5
Wind: 8 mph
4 PM
Cloudy Weather
91°
Feels Like 97°
40
Humidity: 48%
UV Index: 4
Wind: 8 mph
5 PM
Sunny with a Chance of Thunderstorms
90°
Feels Like 93°
61
Humidity: 61%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
86°
Feels Like 93°
49
Humidity: 64%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
84°
Feels Like 88°
39
Humidity: 63%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
84°
Feels Like 90°
20
Humidity: 69%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
81°
Feels Like 86°
20
Humidity: 77%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
77°
Feels Like 82°
20
Humidity: 84%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
75°
Feels Like 81°
20
Humidity: 92%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.51 µg/m³
  • PM10: 9.07 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.95 µg/m³
  • PM10: 8.38 µg/m³
  • O3: 0.055 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
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.91 µg/m³
  • PM10: 6.25 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 4.34 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 2.89 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.87 µg/m³
  • PM10: 2.07 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.75 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 2.64 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.3 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.020 ppm
  • NO2: 4.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.61 µg/m³
  • PM10: 3.87 µg/m³
  • O3: 0.016 ppm
  • NO2: 4.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.78 µg/m³
  • PM10: 4.14 µg/m³
  • O3: 0.015 ppm
  • NO2: 4.3 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
14 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.84 µg/m³
  • PM10: 4.11 µg/m³
  • O3: 0.016 ppm
  • NO2: 4 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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