Montoursville, Pennsylvania, USA Air Quality

Monitoring Station · Williamsport, United States
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
53 12am
40
40
47 3am
47
67
47 6am
47
40
40 9am
40
40
40 12pm
37
37
— 3pm
—
—
— 6pm
—
—
— 9pm
—
—
CAMS model adj +13
27
27
27
34
34
54
34
34
27
27
27
27
27
24
24

Air Quality Forecast (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Cities

31 Williamsport 28 Back Mountain 32 Hazleton 28 Wilkes-Barre 26 State College 25 Elmira 30 Scranton 41 Harrisburg 43 Vestal

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:50 UTC.