Air Quality in Lemont, United States

Windy
26.2°C · 44.3% humidity
26.2°
Feels 26.2°
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
19 stations

Nearby Monitoring Stations

AQI Forecast
24 3pm
24
24
49 6pm
42
38
36 9pm
34
32
30 12am
29
27
28 3am
55
84
83 6am
84
54
66 9am
83
83
84 12pm
146
146
AD 728×90

Air Quality Index Trend

48h · 6 stn

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

44.3%
Humidity
44.0 km/h
Wind ENE
1013.9 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
49
11.65 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Lemont?

Temperature & Precipitation

PM2.5 Trend

48h · 6 stations
PM2.511.65 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (19 stations within 25 km)
11.65
Median
11.88
Average
7.2
Low
13.18
High
PM2.5 µg/m³ · Model: 9.65 · Bias: -2.0

What is the 7-day forecast for Lemont?

07-21
30.2° 22.3°
1.5 mm
07-22
26.2° 20.6°
0.25 mm
07-23
23.4° 17.1°
8.06 mm
07-24
28.4° 18.9°
07-25
25.3° 18.2°
0.19 mm
07-26
26.4° 21.6°
1.94 mm
07-27
27.0° 20.0°
0.25 mm
Both models agree Avg diff: 3.7°C

Where are air quality stations near Lemont?

50
Clearing 1
20.2 km PM2.5: 11.9 µg/m³
48
Garfield Ridge 4
20.9 km PM2.5: 11.4 µg/m³
49
Clearing 2
22.3 km PM2.5: 11.7 µg/m³
53
Alsip, Illinois, USA
22.4 km PM2.5: 13.1 µg/m³
44
Garfield Ridge 3
22.5 km PM2.5: 10.6 µg/m³
50
Ashburn 8
22.9 km PM2.5: 12.0 µg/m³
46
Garfield Ridge 2
23.0 km PM2.5: 11.0 µg/m³
48
Ashburn 1
23.5 km PM2.5: 11.4 µg/m³
48
Clearing 3
23.6 km PM2.5: 11.6 µg/m³
49
West Lawn 4
24.0 km PM2.5: 11.7 µg/m³

What cities are near Lemont?

43 Bolingbrook 51 Goodings Grove 42 Romeoville 45 Woodridge 49 Homer Glen 42 Lockport 52 Orland Park 50 Westmont 50 Downers Grove 51 Hinsdale
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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 2026-07-21T23:12 UTC.