Air Quality in Lancaster, United States
Drizzle
17.4°C · 91.1% humidity
17.4°
Feels 17.4°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Lancaster's air quality — share it
AQI Forecast
34
10am
27
27
27
1pm
27
27
25
4pm
25
25
25
7pm
25
25
25
10pm
25
25
25
1am
25
27
27
4am
25
25
25
7am
25
25
Air Quality Index Trend
15h · 1 stnLancaster's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
91.1%
Humidity
52.5 km/h
Wind SW
1021.1 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.5 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Lancaster?
Temperature & Precipitation
PM2.5 Trend
15h · 1 stationPM2.56.5 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
What is the 7-day forecast for Lancaster?
09-05
20.2° 14.9°
0.5 mm
09-06
24.2° 19.4°
2.25 mm
09-07
25.9° 12.9°
0.88 mm
09-08
24.9° 16.2°
2.12 mm
09-09
28.0° 12.0°
2.87 mm
09-10
25.1° 14.5°
0.31 mm
09-11
33.1° 13.3°
Both models agree
Avg diff: 5.2°C
What cities are near Lancaster?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T17:03 UTC.