Hourly Weather | Today Wednesday, October 22, 2025
Baltimore, Maryland
7 AM
Cloudy Night
52°
Feels Like 46°
25
Humidity: 83%
Wind: 8 mph
UV Index: 0
8 AM
Cloudy Weather
52°
Feels Like 46°
0
Humidity: 82%
Wind: 12 mph
UV Index: 3
9 AM
Cloudy Weather
54°
Feels Like 48°
0
Humidity: 72%
Wind: 13 mph
UV Index: 12
10 AM
Cloudy Weather
57°
Feels Like 54°
0
Humidity: 57%
Wind: 14 mph
UV Index: 20
11 AM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 49%
Wind: 15 mph
UV Index: 27
12 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 43%
Wind: 16 mph
UV Index: 33
1 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 40%
Wind: 17 mph
UV Index: 36
2 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 39%
Wind: 15 mph
UV Index: 33
3 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 36%
Wind: 15 mph
UV Index: 27
4 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 38%
Wind: 15 mph
UV Index: 20
5 PM
Cloudy Weather
63°
Feels Like 57°
0
Humidity: 41%
Wind: 14 mph
UV Index: 12
6 PM
Cloudy Weather
61°
Feels Like 55°
0
Humidity: 44%
Wind: 13 mph
UV Index: 3
7 PM
Cloudy Night
57°
Feels Like 52°
0
Humidity: 51%
Wind: 12 mph
UV Index: 0
8 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 57%
Wind: 8 mph
UV Index: 0
9 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 58%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy Night
52°
Feels Like 48°
0
Humidity: 60%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy Night
52°
Feels Like 48°
0
Humidity: 63%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.98 µg/m³
  • PM10: 3.45 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.83 µg/m³
  • PM10: 2.27 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 1.85 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.17 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.91 µg/m³
  • PM10: 1.15 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

1 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.18 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.32 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.22 µg/m³
  • PM10: 1.46 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.27 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.23 µg/m³
  • PM10: 1.48 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 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: 1.16 µg/m³
  • PM10: 1.46 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 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: 1.13 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.07 µg/m³
  • PM10: 1.57 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 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: 1.05 µg/m³
  • PM10: 1.67 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.12 µg/m³
  • PM10: 1.88 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.19 µg/m³
  • PM10: 2.01 µg/m³
  • O3: 0.024 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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