Johnstown, Pennsylvania, USA Air Quality

Monitoring Station · Johnstown, United States
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
38 7pm
38
43
48 10pm
39
39
39 1am
39
39
39 4am
39
39
39 7am
39
39
— 10am
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Station readings
43
48
CAMS model adj +14
24
24
24
24
25
25
25
25
25
25
25
25
25
25
25

Air Quality Forecast (24h)

PM2.511.5 µg/m³ ✓ WHO
Good
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Nearby Cities

40 Johnstown 25 Altoona 43 Murrysville 43 Plum 42 Cumberland 43 Monroeville 43 McKeesport 43 West Mifflin 43 Penn Hills

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T22:37 UTC.