Norristown, Pennsylvania, USA Air Quality

Monitoring Station · Norristown, United States
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
18 5am
32
25
25 8am
25
32
32 11am
25
25
25 2pm
25
25
25 5pm
25
25
— 8pm
—
—
— 11pm
—
—
— 2am
—
—
CAMS model adj -2
34
34
27
27
27
34
34
27
27
27
27
27
27
27
27

Air Quality Forecast (24h)

PM2.54.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

23
C077 ( 945 Manatawna Ave)
7.7 km PM2.5: 5.6 µg/m³
25
AMS ROX Station
9.2 km PM2.5: 6.1 µg/m³
22
8701 Germantown Ave
9.4 km PM2.5: 5.2 µg/m³
26
723 Wolcott Dr (2)
10.4 km PM2.5: 6.2 µg/m³
20
6237 Ridge Ave
11.5 km PM2.5: 4.7 µg/m³
24
629 E Allen Ln
11.8 km PM2.5: 5.8 µg/m³
22
6735 Germantown Ave
12.4 km PM2.5: 5.3 µg/m³
21
5029 Ridge ave
13.5 km PM2.5: 5.0 µg/m³

Nearby Cities

42 Norristown 42 King of Prussia 45 Radnor 45 East Mount Airy 45 West Oak Lane 42 Lansdale 46 Havertown 47 Overbrook 44 Abington

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T08:23 UTC.