What is the air quality in Chester today?

The current Air Quality Index (AQI) in Chester is 25 (Good). PM2.5 concentration is 5.92 µg/m³.

What is the temperature in Chester right now?

The current temperature in Chester is 11.1°C (feels like 11.1°C). Humidity is 71.6% and wind speed is 37.5 km/h.

Is it safe to go outside in Chester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Chester, United States

Cloudy

11.1°C · 71.6% humidity

11.1°

Feels 11.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

54 stations

Nearby Monitoring Stations

AQI Forecast

— 6pm

—

— 9pm

—

— 12am

—

— 3am

—

— 6am

—

— 9am

—

— 12pm

—

— 3pm

—

Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

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.

71.6%

Humidity

37.5 km/h

Wind ENE

1027.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.92 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chester?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.55.92 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (54 stations within 25 km)

5.92

Median

5.48

Average

2.96

Low

9.1

High

PM2.5 µg/m³ · Model: 6.5 · Bias: +0.6

What is the 7-day forecast for Chester?

10-21

21.4° 8.7°

0.06 mm

10-22

20.6° 13.1°

3.75 mm

10-23

18.4° 7.1°

10-24

17.7° 10.8°

0.06 mm

10-25

20.1° 7.1°

1.37 mm

10-26

15.6° 11.2°

7.37 mm

10-27

12.1° 8.3°

8.63 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Chester?

Chester, Pennsylvania, USA

1.8 km PM2.5: 6.2 µg/m³

Chester, Pennsylvania, USA

1.8 km PM2.5: 8.4 µg/m³

3001 S 84th St

10.8 km PM2.5: 5.3 µg/m³

AMS SWA Site

12.4 km PM2.5: 4.8 µg/m³

7331 Lindbergh Blvd

12.4 km PM2.5: 8.9 µg/m³

Cobbs Creek Pkwy & Greenway St

12.4 km PM2.5: 5.1 µg/m³

6298 Eastwick Ave

14.1 km PM2.5: 5.7 µg/m³

2600 Penrose Ave

15.3 km PM2.5: 5.2 µg/m³

5404 Baltimore Ave

15.5 km PM2.5: 6.6 µg/m³

Bartrams Garden - AQ Host

15.7 km PM2.5: 4.9 µg/m³

What cities are near Chester?

23 Drexel Hill 23 Elmwood 22 Kingsessing 24 Cobbs Creek 23 Havertown 24 Haddington 23 University City 21 Point Breeze 22 Lower Moyamensing 23 Overbrook

Get AQI alerts for Chester

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T01:06 UTC.