Air Quality in Westchester, United States
Rain
27.9°C · 62.1% humidity
27.9°
Feels 31.6°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Westchester's air quality — share it
AQI Forecast
25
3pm
25
25
19
6pm
21
22
23
9pm
23
24
24
12am
24
25
25
3am
25
25
25
6am
25
25
25
9am
25
25
25
12pm
25
25
Air Quality Index Trend
48h · 1 stnWestchester's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
62.1%
Humidity
91.2 km/h
Wind SE
1013.2 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.54 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Westchester?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.54.54 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
Station readings (2 stations within 25 km)
4.54
Median
6.73
Average
4.06
Low
9.4
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.7
What is the 7-day forecast for Westchester?
05-28
29.6° 28.2°
1.13 mm
05-29
28.0° 27.2°
10.56 mm
05-30
30.8° 27.3°
05-31
29.7° 26.6°
3.81 mm
06-01
29.6° 26.1°
10.62 mm
06-02
29.4° 27.3°
3.56 mm
06-03
27.9° 27.1°
0.38 mm
Both models agree
Avg diff: 1.5°C
Where are air quality stations near Westchester?
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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 2026-05-28T22:52 UTC.