Air Quality in Westfield, United States

Partly Cloudy
15.5°C · 62.4% humidity
15.5°
Feels 15.5°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
24 3pm
24
24
18 6pm
20
21
23 9pm
23
24
24 12am
24
25
25 3am
25
25
24 6am
24
25
25 9am
25
24
24 12pm
24
24

Air Quality Index Trend

38h · 5 stn

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

62.4%
Humidity
34.7 km/h
Wind ENE
1022.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.3 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Westfield?

Temperature & Precipitation

PM2.5 Trend

38h · 5 stations
PM2.54.3 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
4.3
Median
4.3
Average
4.3
Low
4.3
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +1.9

What is the 7-day forecast for Westfield?

09-22
23.9° 8.6°
09-23
22.3° 15.3°
09-24
23.2° 14.2°
5.56 mm
09-25
20.8° 14.3°
09-26
21.6° 6.1°
1.37 mm
09-27
17.2° 13.7°
0.13 mm
09-28
22.9° 18.7°
0.06 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Westfield?

15
Fishers, Indiana, USA
18.4 km PM2.5: 3.6 µg/m³

What cities are near Westfield?

18 Carmel 18 Noblesville 18 Fishers 18 Zionsville 18 Broad Ripple 18 Lawrence 18 Indianapolis 18 Brownsburg 18 Fairfield Heights 20 Anderson
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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 2026-09-22T22:45 UTC.