Air Quality in Allentown, United States
Windy
25.9°C · 47.2% humidity
25.9°
Feels 25.9°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Allentown's air quality — share it
AQI Forecast
Calibrated
77
10am
77
77
54
1pm
41
45
42
4pm
42
43
45
7pm
46
48
47
10pm
47
47
48
1am
47
47
47
4am
47
47
47
7am
47
47
Station readings
77
74
65
CAMS model
adj +23
54
54
54
54
34
34
27
25
24
25
25
27
25
25
25
25
24
24
24
24
24
24
24
24
Air Quality Index Trend
44h · 1 stnAllentown's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
47.2%
Humidity
73.3 km/h
Wind NE
1013.1 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.5 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Allentown?
Temperature & Precipitation
PM2.5 Trend
44h · 1 stationPM2.513.5 µg/m³
✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX12.9
Extreme
What is the 7-day forecast for Allentown?
07-21
25.9° 19.9°
07-22
20.1° 14.6°
0.94 mm
07-23
26.7° 16.9°
24.19 mm
07-24
24.4° 13.5°
1.88 mm
07-25
27.6° 18.4°
3.31 mm
07-26
25.8° 16.2°
8.75 mm
07-27
25.0° 20.0°
4.44 mm
Both models agree
Avg diff: 2.8°C
Where are air quality stations near Allentown?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:13 UTC.