What is the air quality in Westchester today?

The current Air Quality Index (AQI) in Westchester is 29 (Good). PM2.5 concentration is 6.94 µg/m³.

What is the temperature in Westchester right now?

The current temperature in Westchester is 9.8°C (feels like 5.3°C). Humidity is 67.7% and wind speed is 48.0 km/h.

Is it safe to go outside in Westchester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 9.4 (Very High).

Air Quality in Westchester, United States

Windy

9.8°C · 67.7% humidity

9.8°

Feels 5.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

215 stations

Nearby Monitoring Stations

AQI Forecast

27 6am

29 9am

25 12pm

27 3pm

27 6pm

27 9pm

27 12am

27 3am

Air Quality Index Trend

47h · 6 stn

View full history →

Westchester'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 Westchester is 1.4× the WHO annual guideline of 5 µg/m³.

67.7%

Humidity

48.0 km/h

Wind NE

1030.8 hPa

Pressure

9.4

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.94 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Westchester?

Temperature & Precipitation

PM2.5 Trend

47h · 6 stations

PM2.56.94 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX9.4

Very High

Station readings (215 stations within 25 km)

6.94

Median

6.65

Average

3.08

Low

11.63

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -0.4

What is the 7-day forecast for Westchester?

05-29

30.0° 8.1°

05-30

24.9° 11.6°

0.06 mm

05-31

27.3° 15.2°

0.06 mm

06-01

31.9° 14.7°

06-02

21.3° 17.1°

9.38 mm

06-03

31.5° 22.7°

06-04

22.8° 12.6°

0.06 mm

Both models agree Avg diff: 5.0°C

Where are air quality stations near Westchester?

Austin 6

9.4 km PM2.5: 6.8 µg/m³

Garfield Ridge 4

9.7 km PM2.5: 8.4 µg/m³

Austin 7

9.7 km PM2.5: 6.5 µg/m³

Garfield Ridge 3

10.5 km PM2.5: 6.9 µg/m³

Austin 8

10.6 km PM2.5: 7.1 µg/m³

Montclare 2

10.6 km PM2.5: 6.7 µg/m³

Clearing 1

10.7 km PM2.5: 9.0 µg/m³

Austin 5

10.8 km PM2.5: 8.2 µg/m³

Austin 9

10.9 km PM2.5: 7.6 µg/m³

Austin 4

11.0 km PM2.5: 10.5 µg/m³

What cities are near Westchester?

28 Bellwood 30 Brookfield 29 Maywood 30 La Grange 28 Melrose Park 30 Hinsdale 28 Elmhurst 31 Berwyn 30 Oak Park 25 Franklin Park

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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 2026-05-29T14:40 UTC.