Air Quality in Westmont, United States

Windy
26.7°C · 37.4% humidity
26.7°
Feels 26.7°
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
8 2pm
8
8
57 5pm
43
33
26 8pm
21
17
15 11pm
13
11
10 2am
10
9
21 5am
9
20
8 8am
8
8
8 11am
8
8
Station readings
17
8
4
4
CAMS model adj -46
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
66
54
66
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

38h · 1 stn

Westmont'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 Westmont is 3.0× the WHO annual guideline of 5 µg/m³.

37.4%
Humidity
58.8 km/h
Wind SW
1011.8 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
57
15.0 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Westmont?

Temperature & Precipitation

PM2.5 Trend

38h · 1 station
PM2.515.0 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (1 station within 25 km)
15.0
Median
15.0
Average
15.0
Low
15.0
High
PM2.5 µg/m³ · Model: 9.75 · Bias: -5.2

What is the 7-day forecast for Westmont?

05-29
26.7° 17.5°
05-30
19.7° 15.1°
05-31
22.6° 17.2°
06-01
22.3° 17.2°
0.06 mm
06-02
24.7° 15.2°
06-03
23.2° 15.4°
06-04
21.3° 16.5°
Both models agree Avg diff: 2.8°C

Where are air quality stations near Westmont?

19
Woodcrest ES (7863)
0.8 km PM2.5: 4.6 µg/m³
20
Century Pk ES (2945)
1.7 km PM2.5: 4.9 µg/m³
27
La Salle ES (4786)
1.8 km PM2.5: 6.4 µg/m³
20
107th St ES (5857)
2.8 km PM2.5: 4.9 µg/m³
24
Knox ES, Dr Owen Lloyd (6869)
3.0 km PM2.5: 5.7 µg/m³
21
Purche ES (6158)
3.7 km PM2.5: 5.0 µg/m³
20
135th St ES (5877)
3.7 km PM2.5: 4.9 µg/m³
24
Budlong ES (2616)
5.1 km PM2.5: 5.8 µg/m³
21
Compton ES (3205)
5.1 km PM2.5: 5.0 µg/m³
22
Avalon Gardens ES (2247)
5.1 km PM2.5: 5.2 µg/m³

What cities are near Westmont?

57 Lennox 57 Willowbrook 57 Inglewood 57 Hawthorne 57 Gardena 43 Florence-Graham 46 Vermont Square 57 Lawndale 42 Walnut Park 45 Huntington 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 2026-05-29T00:25 UTC.