Air Quality in Lemont, United States

Windy
11.9°C · 55.9% humidity
11.9°
Feels 11.9°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
18 stations

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
24 5pm
27
27
25 8pm
25
25
25 11pm
27
27
27 2am
27
27
27 5am
27
27
25 8am
25
25
25 11am
25
25
AD 728×90

Air Quality Index Trend

47h · 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. Current PM2.5 concentration in Lemont is 1.1× the WHO annual guideline of 5 µg/m³.

55.9%
Humidity
73.7 km/h
Wind NNE
1027.6 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.65 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Lemont?

Temperature & Precipitation

PM2.5 Trend

47h · 6 stations
PM2.55.65 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (18 stations within 25 km)
5.65
Median
5.78
Average
4.1
Low
6.86
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +4.3

What is the 7-day forecast for Lemont?

05-28
29.0° 12.2°
16.94 mm
05-29
29.6° 8.4°
05-30
24.3° 12.9°
0.25 mm
05-31
31.4° 15.1°
0.06 mm
06-01
30.9° 16.5°
06-02
21.4° 16.2°
8.69 mm
06-03
30.6° 22.9°
Both models agree Avg diff: 4.9°C

Where are air quality stations near Lemont?

28
Clearing 1
20.2 km PM2.5: 6.6 µg/m³
23
Garfield Ridge 4
20.9 km PM2.5: 5.6 µg/m³
25
Clearing 2
22.3 km PM2.5: 5.9 µg/m³
28
Alsip, Illinois, USA
22.4 km PM2.5: 6.7 µg/m³
22
Garfield Ridge 3
22.5 km PM2.5: 5.3 µg/m³
29
Ashburn 8
22.9 km PM2.5: 6.9 µg/m³
24
Garfield Ridge 2
23.0 km PM2.5: 5.8 µg/m³
24
Ashburn 1
23.5 km PM2.5: 5.8 µg/m³
23
Clearing 3
23.6 km PM2.5: 5.4 µg/m³
28
West Lawn 4
24.0 km PM2.5: 6.6 µg/m³

What cities are near Lemont?

20 Bolingbrook 25 Goodings Grove 20 Romeoville 20 Woodridge 25 Homer Glen 21 Lockport 25 Orland Park 25 Westmont 24 Downers Grove 25 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 2026-05-28T22:50 UTC.