Hourly Weather | Today Wednesday, March 18, 2026
Lancaster, Pennsylvania
10 AM
Cloudy Weather
28°
Feels Like 27°
0
Humidity: 44%
UV Index: 2
Wind: 7 mph
11 AM
Cloudy Weather
30°
Feels Like 28°
0
Humidity: 40%
UV Index: 2
Wind: 8 mph
12 PM
Cloudy Weather
34°
Feels Like 34°
0
Humidity: 36%
UV Index: 3
Wind: 8 mph
1 PM
Cloudy Weather
36°
Feels Like 37°
0
Humidity: 33%
UV Index: 4
Wind: 7 mph
2 PM
Cloudy Weather
37°
Feels Like 41°
0
Humidity: 32%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
37°
Feels Like 39°
0
Humidity: 31%
UV Index: 4
Wind: 8 mph
4 PM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 32%
UV Index: 3
Wind: 9 mph
5 PM
Cloudy Weather
39°
Feels Like 34°
0
Humidity: 32%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
36°
Feels Like 30°
0
Humidity: 36%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
34°
Feels Like 27°
0
Humidity: 39%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
32°
Feels Like 27°
0
Humidity: 44%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
28°
Feels Like 25°
0
Humidity: 49%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
27°
Feels Like 23°
0
Humidity: 54%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
27°
Feels Like 23°
0
Humidity: 56%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.27 µg/m³
  • PM10: 7.67 µg/m³
  • O3: 0.042 ppm
  • NO2: 7.9 ppb
  • SO2: 2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.73 µg/m³
  • PM10: 8.28 µg/m³
  • O3: 0.043 ppm
  • NO2: 7 ppb
  • SO2: 2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 6.35 µg/m³
  • O3: 0.048 ppm
  • NO2: 4.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.17 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: 3.78 µg/m³
  • PM10: 6.09 µg/m³
  • O3: 0.049 ppm
  • NO2: 3.8 ppb
  • SO2: 1.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.17 µg/m³
  • PM10: 6.52 µg/m³
  • O3: 0.050 ppm
  • NO2: 3.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.4 µg/m³
  • PM10: 6.77 µg/m³
  • O3: 0.051 ppm
  • NO2: 3.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.42 µg/m³
  • PM10: 6.73 µg/m³
  • O3: 0.052 ppm
  • NO2: 3.9 ppb
  • SO2: 1.4 ppb
  • CO: 0.16 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: 4.19 µg/m³
  • PM10: 6.4 µg/m³
  • O3: 0.052 ppm
  • NO2: 4 ppb
  • SO2: 1.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.45 µg/m³
  • PM10: 6.91 µg/m³
  • O3: 0.050 ppm
  • NO2: 5.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.02 µg/m³
  • PM10: 8.06 µg/m³
  • O3: 0.045 ppm
  • NO2: 9.3 ppb
  • SO2: 1.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.4 µg/m³
  • PM10: 8.98 µg/m³
  • O3: 0.040 ppm
  • NO2: 11.1 ppb
  • SO2: 1.4 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.8 µg/m³
  • PM10: 9.83 µg/m³
  • O3: 0.038 ppm
  • NO2: 11.1 ppb
  • SO2: 1.2 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.12 µg/m³
  • PM10: 10.38 µg/m³
  • O3: 0.038 ppm
  • NO2: 10.4 ppb
  • SO2: 1.1 ppb
  • CO: 0.22 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.23 µg/m³
  • PM10: 10.43 µg/m³
  • O3: 0.039 ppm
  • NO2: 9 ppb
  • SO2: 1.2 ppb
  • CO: 0.21 ppm

Health Recommendations:

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