Air Quality in Williamsport, United States
Drizzle
8.6°C · 95.1% humidity
8.6°
Feels 4.8°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Williamsport's air quality — share it
AQI Forecast
24
8pm
25
25
41
11pm
36
33
31
2am
29
28
27
5am
27
26
26
8am
26
25
25
11am
25
25
25
2pm
25
25
27
5pm
27
27
Air Quality Index Trend
40h · 1 stnWilliamsport's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
95.1%
Humidity
29.7 km/h
Wind W
1002.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.75 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Williamsport?
Temperature & Precipitation
PM2.5 Trend
40h · 1 stationPM2.59.75 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Williamsport?
06-09
30.5° 8.6°
1.12 mm
06-10
22.2° 16.3°
13.0 mm
06-11
24.9° 7.7°
06-12
25.1° 15.9°
0.06 mm
06-13
26.6° 15.1°
2.69 mm
06-14
22.4° 14.9°
6.38 mm
06-15
23.1° 12.2°
0.19 mm
Both models agree
Avg diff: 5.5°C
Where are air quality stations near Williamsport?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T03:40 UTC.