What is the air quality in Lemont today?

The current Air Quality Index (AQI) in Lemont is 55 (Moderate). PM2.5 concentration is 13.75 µg/m³.

What is the temperature in Lemont right now?

The current temperature in Lemont is 14.0°C (feels like 14.0°C). Humidity is 44.3% and wind speed is 33.0 km/h.

Air Quality in Lemont, United States

Clear

14.0°C · 44.3% humidity

14.0°

Feels 14.0°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

18 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 283 stn

View full history →

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

33.0 km/h

Wind ENE

1023.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.75 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Lemont?

Temperature & Precipitation

PM2.5 Trend

46h · 283 stations

PM2.513.75 µg/m³ ✓ WHO

Moderate

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (18 stations within 25 km)

13.75

Median

14.32

Average

5.5

Low

18.32

High

PM2.5 µg/m³ · Model: 13.5 · Bias: -0.2

Both models agree Avg diff: 4.6°C

Where are air quality stations near Lemont?

Naperville, Illinois, USA

16.6 km PM2.5: 9.6 µg/m³

Joliet, Illinois, USA

18.9 km PM2.5: 5.5 µg/m³

Joliet, Illinois, USA

18.9 km PM2.5: 6.0 µg/m³

Clearing 1

20.2 km PM2.5: 9.8 µg/m³

Garfield Ridge 4

20.9 km PM2.5: 15.8 µg/m³

Clearing 2

22.3 km PM2.5: 6.7 µg/m³

Alsip, Illinois, USA

22.4 km PM2.5: 14.0 µg/m³

Garfield Ridge 3

22.5 km PM2.5: 18.0 µg/m³

Ashburn 8

22.9 km PM2.5: 17.7 µg/m³

Garfield Ridge 2

23.0 km PM2.5: 18.3 µg/m³

What cities are near Lemont?

40 Bolingbrook 57 Goodings Grove 31 Romeoville 49 Woodridge 54 Homer Glen 25 Lockport 58 Orland Park 59 Westmont 59 Downers Grove 58 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 2026-10-20T21:44 UTC.