Hourly Weather | Today › Sunday, October 4, 2026
Baltimore, Maryland
2 PM
Cloudy Weather
63°
Feels Like 63°
49
Humidity: 92%
UV Index: 1
Wind: 7 mph
3 PM
Rainy Weather
63°
Feels Like 61°
64
Humidity: 91%
UV Index: 1
Wind: 7 mph
4 PM
Rainy Weather
64°
Feels Like 61°
64
Humidity: 88%
UV Index: 1
Wind: 7 mph
5 PM
Rainy Weather
63°
Feels Like 61°
51
Humidity: 91%
UV Index: 0
Wind: 7 mph
6 PM
Cloudy Weather
63°
Feels Like 63°
47
Humidity: 92%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Weather
63°
Feels Like 61°
45
Humidity: 92%
UV Index: 0
Wind: 6 mph
8 PM
Rainy Weather
63°
Feels Like 59°
48
Humidity: 93%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
61°
Feels Like 61°
41
Humidity: 94%
UV Index: 0
Wind: 5 mph
10 PM
Rainy Weather
61°
Feels Like 59°
48
Humidity: 94%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Weather
61°
Feels Like 63°
40
Humidity: 94%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.14 µg/m³
  • O3: 0.018 ppm
  • NO2: 3.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 4 µg/m³
  • O3: 0.020 ppm
  • NO2: 3.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.02 µg/m³
  • PM10: 3.99 µg/m³
  • O3: 0.021 ppm
  • NO2: 3.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.021 ppm
  • NO2: 4 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 4.29 µg/m³
  • O3: 0.019 ppm
  • NO2: 4.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.32 µg/m³
  • PM10: 4.77 µg/m³
  • O3: 0.017 ppm
  • NO2: 5.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.55 µg/m³
  • PM10: 5.3 µg/m³
  • O3: 0.016 ppm
  • NO2: 5.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

9 PM
16 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 5.91 µg/m³
  • O3: 0.012 ppm
  • NO2: 5.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.06 µg/m³
  • PM10: 6.52 µg/m³
  • O3: 0.008 ppm
  • NO2: 5.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.29 µg/m³
  • PM10: 6.84 µg/m³
  • O3: 0.005 ppm
  • NO2: 5.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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