Air Quality in Chester, United States

Partly Cloudy
20.6°C · 63.2% humidity
20.6°
Feels 20.6°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
54 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
7 8am
7
7
19 11am
15
12
11 2pm
10
9
9 5pm
8
8
10 8pm
9
7
7 11pm
7
7
7 2am
7
7
7 5am
7
7
Station readings
5
9
6
12
CAMS model adj -18
25
25
25
25
24
24
25
25
25
25
25
25
27
27
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

42h · 1 stn

Chester's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

63.2%
Humidity
37.7 km/h
Wind ESE
1019.8 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
19
4.53 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Chester?

Temperature & Precipitation

PM2.5 Trend

42h · 1 station
PM2.54.53 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (54 stations within 25 km)
4.53
Median
4.28
Average
2.15
Low
11.8
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.5

What is the 7-day forecast for Chester?

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
06-04
24.0° 20.2°
Both models agree Avg diff: 4.3°C

Where are air quality stations near Chester?

34
Chester, Pennsylvania, USA
1.8 km PM2.5: 8.2 µg/m³
36
Marcus Hook, Pennsylvania, USA
5.8 km PM2.5: 8.6 µg/m³
14
Marcus Hook, Pennsylvania, USA
5.8 km PM2.5: 3.4 µg/m³
17
3001 S 84th St
10.8 km PM2.5: 4.0 µg/m³
15
AMS SWA Site
12.3 km PM2.5: 3.7 µg/m³
17
7331 Lindbergh Blvd
12.4 km PM2.5: 4.0 µg/m³
16
Cobbs Creek Pkwy & Greenway St
12.4 km PM2.5: 3.9 µg/m³
22
6298 Eastwick Ave
14.1 km PM2.5: 5.2 µg/m³
20
2600 Penrose Ave
15.3 km PM2.5: 4.8 µg/m³
17
5404 Baltimore Ave
15.5 km PM2.5: 4.1 µg/m³

What cities are near Chester?

18 Drexel Hill 20 Elmwood 18 Kingsessing 17 Cobbs Creek 17 Havertown 16 Haddington 17 University City 24 Point Breeze 18 Lower Moyamensing 15 Overbrook
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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 2026-05-29T15:27 UTC.