Hourly Weather | Today Wednesday, August 12, 2026
Lancaster, Pennsylvania
9 AM
Cloudy Weather
73°
Feels Like 81°
0
Humidity: 79%
UV Index: 3
Wind: 4 mph
10 AM
Cloudy Weather
77°
Feels Like 84°
0
Humidity: 70%
UV Index: 4
Wind: 4 mph
11 AM
Cloudy Weather
79°
Feels Like 88°
0
Humidity: 63%
UV Index: 6
Wind: 4 mph
12 PM
Cloudy Weather
81°
Feels Like 91°
0
Humidity: 59%
UV Index: 8
Wind: 6 mph
1 PM
Cloudy Weather
82°
Feels Like 93°
0
Humidity: 57%
UV Index: 9
Wind: 6 mph
2 PM
Cloudy Weather
82°
Feels Like 93°
7
Humidity: 56%
UV Index: 8
Wind: 6 mph
3 PM
Cloudy Weather
84°
Feels Like 91°
7
Humidity: 55%
UV Index: 6
Wind: 7 mph
4 PM
Cloudy Weather
84°
Feels Like 90°
7
Humidity: 54%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
84°
Feels Like 88°
7
Humidity: 56%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
82°
Feels Like 86°
7
Humidity: 60%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
81°
Feels Like 82°
7
Humidity: 66%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
79°
Feels Like 81°
7
Humidity: 72%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
77°
Feels Like 79°
7
Humidity: 80%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
75°
Feels Like 77°
7
Humidity: 84%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
73°
Feels Like 75°
7
Humidity: 89%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.22 µg/m³
  • PM10: 5.89 µg/m³
  • O3: 0.011 ppm
  • NO2: 4.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

10 AM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.53 µg/m³
  • PM10: 6.26 µg/m³
  • O3: 0.017 ppm
  • NO2: 4.2 ppb
  • SO2: 1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.57 µg/m³
  • PM10: 7.33 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.62 µg/m³
  • PM10: 8.26 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.3 ppb
  • SO2: 1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.97 µg/m³
  • PM10: 8.53 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.37 µg/m³
  • PM10: 8.94 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.5 µg/m³
  • PM10: 9.09 µg/m³
  • O3: 0.053 ppm
  • NO2: 2.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.16 µg/m³
  • PM10: 8.76 µg/m³
  • O3: 0.053 ppm
  • NO2: 2.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 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: 7.76 µg/m³
  • PM10: 8.38 µg/m³
  • O3: 0.052 ppm
  • NO2: 3.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.71 µg/m³
  • PM10: 8.43 µg/m³
  • O3: 0.048 ppm
  • NO2: 5.5 ppb
  • SO2: 1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 8.76 µg/m³
  • O3: 0.042 ppm
  • NO2: 8.2 ppb
  • SO2: 1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.89 µg/m³
  • PM10: 8.97 µg/m³
  • O3: 0.037 ppm
  • NO2: 9.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.96 µg/m³
  • PM10: 9.2 µg/m³
  • O3: 0.031 ppm
  • NO2: 10.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.27 µg/m³
  • PM10: 9.72 µg/m³
  • O3: 0.026 ppm
  • NO2: 11.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.53 µg/m³
  • PM10: 10.09 µg/m³
  • O3: 0.021 ppm
  • NO2: 12 ppb
  • SO2: 0.6 ppb
  • CO: 0.22 ppm

Health Recommendations:

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