Hourly Weather | Today Thursday, December 4, 2025
Baltimore, Maryland
6 AM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 86%
Wind: 5 mph
UV Index: 0
7 AM
Cloudy Night
34°
Feels Like 27°
0
Humidity: 70%
Wind: 8 mph
UV Index: 0
8 AM
Cloudy Weather
34°
Feels Like 25°
0
Humidity: 74%
Wind: 10 mph
UV Index: 0
9 AM
Cloudy Weather
36°
Feels Like 27°
0
Humidity: 67%
Wind: 12 mph
UV Index: 1
10 AM
Cloudy Weather
39°
Feels Like 30°
0
Humidity: 60%
Wind: 14 mph
UV Index: 1
11 AM
Cloudy Weather
41°
Feels Like 30°
0
Humidity: 57%
Wind: 15 mph
UV Index: 1
12 PM
Cloudy Weather
43°
Feels Like 32°
0
Humidity: 55%
Wind: 16 mph
UV Index: 2
1 PM
Cloudy Weather
43°
Feels Like 34°
0
Humidity: 54%
Wind: 16 mph
UV Index: 2
2 PM
Cloudy Weather
43°
Feels Like 34°
0
Humidity: 51%
Wind: 16 mph
UV Index: 1
3 PM
Cloudy Weather
45°
Feels Like 34°
0
Humidity: 47%
Wind: 16 mph
UV Index: 1
4 PM
Cloudy Weather
41°
Feels Like 30°
0
Humidity: 48%
Wind: 15 mph
UV Index: 0
5 PM
Cloudy Night
37°
Feels Like 28°
0
Humidity: 51%
Wind: 13 mph
UV Index: 0
6 PM
Cloudy Night
36°
Feels Like 27°
0
Humidity: 52%
Wind: 12 mph
UV Index: 0
7 PM
Cloudy Night
34°
Feels Like 27°
0
Humidity: 54%
Wind: 8 mph
UV Index: 0
8 PM
Cloudy Night
32°
Feels Like 27°
0
Humidity: 54%
Wind: 8 mph
UV Index: 0
9 PM
Cloudy Night
30°
Feels Like 25°
0
Humidity: 56%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy Night
28°
Feels Like 25°
0
Humidity: 59%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy Night
28°
Feels Like 23°
0
Humidity: 60%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.09 µg/m³
  • PM10: 10.96 µg/m³
  • O3: 0.013 ppm
  • NO2: 8 ppb
  • SO2: 0.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

7 AM
45 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.73 µg/m³
  • PM10: 13.19 µg/m³
  • O3: 0.010 ppm
  • NO2: 10.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

8 AM
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.38 µg/m³
  • PM10: 15.67 µg/m³
  • O3: 0.006 ppm
  • NO2: 13.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

9 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.29 µg/m³
  • PM10: 17.22 µg/m³
  • O3: 0.007 ppm
  • NO2: 12.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

10 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.83 µg/m³
  • PM10: 18.08 µg/m³
  • O3: 0.008 ppm
  • NO2: 11.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

11 AM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.63 µg/m³
  • PM10: 14.33 µg/m³
  • O3: 0.021 ppm
  • NO2: 7.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

12 PM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.2 µg/m³
  • PM10: 13.81 µg/m³
  • O3: 0.023 ppm
  • NO2: 7.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

1 PM
45 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.84 µg/m³
  • PM10: 13.48 µg/m³
  • O3: 0.024 ppm
  • NO2: 7.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

2 PM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.36 µg/m³
  • PM10: 10.34 µg/m³
  • O3: 0.031 ppm
  • NO2: 6.1 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 7.73 µg/m³
  • O3: 0.035 ppm
  • NO2: 5 ppb
  • SO2: 1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.58 µg/m³
  • PM10: 5.77 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 4.38 µg/m³
  • O3: 0.034 ppm
  • NO2: 5.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.89 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.92 µg/m³
  • PM10: 3.89 µg/m³
  • O3: 0.031 ppm
  • NO2: 6.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.15 µg/m³
  • PM10: 4.21 µg/m³
  • O3: 0.030 ppm
  • NO2: 6.6 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 4.53 µg/m³
  • O3: 0.030 ppm
  • NO2: 6.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 4.52 µg/m³
  • O3: 0.033 ppm
  • NO2: 6 ppb
  • SO2: 1.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.84 µg/m³
  • PM10: 4.24 µg/m³
  • O3: 0.035 ppm
  • NO2: 5.3 ppb
  • SO2: 1.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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