Johnstown, Pennsylvania, USA Air Quality

Monitoring Station · Johnstown, United States
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
38 6am
32
38
32 9am
32
32
32 12pm
33
33
33 3pm
33
35
35 6pm
35
35
— 9pm
—
—
— 12am
—
—
— 3am
—
—
Station readings
38
38
CAMS model adj +8
24
24
24
24
24
24
24
25
25
25
25
27
27
27
27

Air Quality Forecast (24h)

PM2.59.1 µg/m³ ✓ WHO
Good
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Nearby Cities

35 Johnstown 23 Altoona 25 Murrysville 26 Plum 25 Cumberland 26 Monroeville 26 McKeesport 26 West Mifflin 26 Penn Hills

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T09:31 UTC.