Hourly Weather | Today Monday, April 27, 2026
Lancaster, Pennsylvania
9 PM
Night
61°
Feels Like 59°
0
Humidity: 55%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 57%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
55°
Feels Like 52°
0
Humidity: 60%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 13.58 µg/m³
  • PM10: 17.26 µg/m³
  • O3: 0.047 ppm
  • NO2: 14.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

10 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.82 µg/m³
  • PM10: 16.5 µg/m³
  • O3: 0.045 ppm
  • NO2: 13.3 ppb
  • SO2: 1.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.38 µg/m³
  • PM10: 15.72 µg/m³
  • O3: 0.046 ppm
  • NO2: 10.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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