Air Quality in King of Prussia, United States

Partly Cloudy
23.0°C · 54.3% humidity
23.0°
Feels 23.0°
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
38 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
49 3pm
49
49
51 6pm
49
49
49 9pm
49
49
49 12am
49
49
49 3am
49
49
49 6am
49
49
47 9am
47
47
47 12pm
47
47
Station readings
59
67
31
CAMS model adj +22
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

47h · 1 stn

King of Prussia's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

54.3%
Humidity
39.3 km/h
Wind ENE
1014.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
51
12.09 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for King of Prussia?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.512.09 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (38 stations within 25 km)
12.09
Median
12.22
Average
10.2
Low
13.56
High
PM2.5 µg/m³ · Model: 16.8 · Bias: +4.7

What is the 7-day forecast for King of Prussia?

07-21
28.8° 20.0°
0.06 mm
07-22
24.8° 18.9°
1.06 mm
07-23
28.9° 17.7°
16.06 mm
07-24
26.1° 18.7°
1.06 mm
07-25
31.3° 21.0°
6.31 mm
07-26
24.8° 19.2°
6.69 mm
07-27
26.6° 22.9°
0.44 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near King of Prussia?

30
Norristown, Pennsylvania, USA
7.8 km PM2.5: 7.2 µg/m³
50
C077 ( 945 Manatawna Ave)
13.9 km PM2.5: 11.9 µg/m³
48
AMS ROX Station
13.9 km PM2.5: 11.6 µg/m³
54
8701 Germantown Ave
16.0 km PM2.5: 13.4 µg/m³
52
723 Wolcott Dr (2)
16.2 km PM2.5: 12.8 µg/m³
42
6237 Ridge Ave
16.3 km PM2.5: 10.2 µg/m³
48
6906 City Ave
16.4 km PM2.5: 11.6 µg/m³
43
C029 (5400 Lincoln Hwy)
17.0 km PM2.5: 10.3 µg/m³
46
CAMP - OEEC Installation 9
17.4 km PM2.5: 11.1 µg/m³
45
5029 Ridge ave
17.6 km PM2.5: 10.9 µg/m³

What cities are near King of Prussia?

51 Radnor 51 Norristown 49 Phoenixville 50 Havertown 46 Overbrook 52 East Mount Airy 51 Drexel Hill 52 Limerick 49 Haddington 48 Lansdale
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T22:10 UTC.