Air Quality in Philadelphia, United States

Drizzle
21.4°C · 50.3% humidity
21.4°
Feels 21.4°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
79 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
11 2pm
9
9
22 5pm
18
16
14 8pm
12
11
11 11pm
10
10
10 2am
9
9
9 5am
9
9
9 8am
9
9
9 11am
8
8
Station readings
6
11
8
10
CAMS model adj -16
27
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
24
24
AD 728×90

Air Quality Index Trend

34h · 1 stn

Philadelphia's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Philadelphia is 1.0× the WHO annual guideline of 5 µg/m³.

50.3%
Humidity
24.9 km/h
Wind WNW
1019.6 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Philadelphia?

Temperature & Precipitation

PM2.5 Trend

34h · 1 station
PM2.55.18 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (79 stations within 25 km)
5.18
Median
5.03
Average
2.28
Low
14.5
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +0.8

What is the 7-day forecast for Philadelphia?

05-28
27.8° 22.2°
05-29
21.4° 12.5°
0.19 mm
05-30
24.8° 10.5°
9.06 mm
05-31
29.8° 11.8°
06-01
29.4° 15.2°
0.13 mm
06-02
23.0° 14.5°
06-03
26.1° 18.8°
1.19 mm
Both models agree Avg diff: 4.0°C

Where are air quality stations near Philadelphia?

22
1401 John F Kennedy Blvd
0.1 km PM2.5: 5.2 µg/m³
22
N 9th St
0.8 km PM2.5: 5.2 µg/m³
21
1901 Walnut St
0.8 km PM2.5: 5.0 µg/m³
21
315 N 18th St
0.9 km PM2.5: 5.0 µg/m³
20
807 Lombard St
1.2 km PM2.5: 4.9 µg/m³
22
2100 Pine St
1.3 km PM2.5: 5.2 µg/m³
21
1358 Ridge Ave, Philadelphia, PA 19123
1.5 km PM2.5: 5.1 µg/m³
10
Annin Street, Philadlephia
1.9 km PM2.5: 2.4 µg/m³ PM10: 2.4 µg/m³
22
3312 Walnut St
2.3 km PM2.5: 5.3 µg/m³
23
S Christopher Columbus Blvd
2.6 km PM2.5: 5.4 µg/m³

What cities are near Philadelphia?

21 Center City 21 Rittenhouse 23 Point Breeze 22 University City 22 Fishtown 20 Wharton 22 Pennsport 21 Lower Moyamensing 20 Strawberry Mansion 21 Hartranft
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:47 UTC.