Hourly Weather | Today Monday, July 27, 2026
Pittsburgh, Pennsylvania
11 AM
Cloudy Weather
79°
Feels Like 90°
7
Humidity: 75%
UV Index: 7
Wind: 7 mph
12 PM
Cloudy Weather
81°
Feels Like 93°
7
Humidity: 68%
UV Index: 9
Wind: 7 mph
1 PM
Cloudy Weather
82°
Feels Like 95°
11
Humidity: 61%
UV Index: 10
Wind: 7 mph
2 PM
Cloudy Weather
84°
Feels Like 91°
19
Humidity: 56%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
86°
Feels Like 91°
19
Humidity: 54%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
88°
Feels Like 91°
24
Humidity: 50%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
86°
Feels Like 90°
43
Humidity: 52%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
84°
Feels Like 88°
47
Humidity: 55%
UV Index: 1
Wind: 7 mph
7 PM
Stormy Weather
82°
Feels Like 82°
51
Humidity: 72%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
79°
Feels Like 84°
47
Humidity: 77%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
77°
Feels Like 82°
48
Humidity: 82%
UV Index: 0
Wind: 6 mph
10 PM
Stormy Weather
75°
Feels Like 75°
52
Humidity: 89%
UV Index: 0
Wind: 6 mph
11 PM
Stormy Weather
75°
Feels Like 75°
56
Humidity: 88%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 12.34 µg/m³
  • PM10: 12.48 µg/m³
  • O3: 0.012 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.13 µg/m³
  • PM10: 10.41 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.9 ppb
  • SO2: 1.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.71 µg/m³
  • PM10: 7.92 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.12 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.39 µg/m³
  • PM10: 6.57 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.56 µg/m³
  • PM10: 5.72 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.97 µg/m³
  • PM10: 5.11 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.67 µg/m³
  • PM10: 4.8 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 1 ppb
  • CO: 0.12 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: 4.82 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.3 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.26 µg/m³
  • PM10: 5.38 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.76 µg/m³
  • PM10: 5.89 µg/m³
  • O3: 0.026 ppm
  • NO2: 2 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 6.4 µg/m³
  • O3: 0.023 ppm
  • NO2: 2 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 7.03 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 7.73 µg/m³
  • O3: 0.020 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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