Air Quality in Westmont, United States

Partly Cloudy
25.4°C · 55.4% humidity
25.4°
Feels 25.4°
74
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast Calibrated
24 1pm
11
24
74 4pm
60
50
42 7pm
37
33
31 10pm
29
27
26 1am
26
25
42 4am
42
24
41 7am
24
24
24 10am
24
24
Station readings
24
11
24
CAMS model adj -42
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
83
83
66
83
66
66
66
66
66
AD 728×90

Air Quality Index Trend

47h · 2 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 1.5× the WHO 24-hour guideline of 15 µg/m³.

55.4%
Humidity
32.6 km/h
Wind SSW
1010.5 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
74
23.15 µg/m³
PM10
60
73.05 µg/m³
050100150200300500

What is the weather forecast for Westmont?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.523.15 µg/m³ ×1.5 WHO
Moderate
PM1073.05 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Westmont?

08-03
25.7° 21.0°
08-04
26.2° 22.1°
08-05
27.6° 21.4°
08-06
27.5° 18.3°
08-07
25.8° 20.1°
08-08
25.8° 19.4°
08-09
24.6° 18.0°
Both models agree Avg diff: 2.7°C

Where are air quality stations near Westmont?

52
Woodcrest ES (7863)
0.8 km PM2.5: 12.4 µg/m³
50
Century Pk ES (2945)
1.7 km PM2.5: 12.0 µg/m³
56
La Salle ES (4786)
1.8 km PM2.5: 14.4 µg/m³
49
107th St ES (5857)
2.8 km PM2.5: 11.8 µg/m³
52
Purche ES (6158)
3.7 km PM2.5: 12.5 µg/m³
52
135th St ES (5877)
3.7 km PM2.5: 12.5 µg/m³
50
122nd St ES (5887)
3.9 km PM2.5: 12.0 µg/m³
51
Compton ES (3205)
5.1 km PM2.5: 12.1 µg/m³
52
Avalon Gardens ES (2247)
5.1 km PM2.5: 12.8 µg/m³
53
Russell ES (6438)
5.1 km PM2.5: 13.2 µg/m³

What cities are near Westmont?

74 Lennox 74 Willowbrook 74 Inglewood 74 Hawthorne 66 Gardena 24 Florence-Graham 23 Vermont Square 66 Lawndale 25 Walnut Park 25 Huntington Park
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:54 UTC.