What is the air quality in Naperville today?

The current Air Quality Index (AQI) in Naperville is 42 (Good). PM2.5 concentration is 10.17 µg/m³.

What is the temperature in Naperville right now?

The current temperature in Naperville is 8.3°C (feels like 1.1°C). Humidity is 51.2% and wind speed is 107.3 km/h.

Is it safe to go outside in Naperville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Naperville, United States

Windy

8.3°C · 51.2% humidity

8.3°

Feels 1.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 272 stn

View full history →

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

51.2%

Humidity

107.3 km/h

Wind NNE

1027.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.17 µg/m³

PM10

41.2 µg/m³

050100150200300500

What is the weather forecast for Naperville?

Temperature & Precipitation

PM2.5 Trend

45h · 272 stations

PM2.510.17 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

10.17

Median

10.17

Average

10.1

Low

10.3

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +3.3

What is the 7-day forecast for Naperville?

10-20

8.3° 2.2°

10-21

20.5° 9.8°

1.69 mm

10-22

14.1° 5.8°

0.25 mm

10-23

10.1° 6.6°

1.19 mm

10-24

20.3° 7.3°

10-25

13.0° 0.2°

0.31 mm

10-26

16.1° 2.3°

4.44 mm

Both models agree Avg diff: 5.7°C

Where are air quality stations near Naperville?

Naperville, Illinois, USA

1.7 km PM2.5: 10.3 µg/m³

Naperville, Illinois, USA

1.7 km PM2.5: 10.1 µg/m³

Naperville, Illinois, USA

1.7 km PM2.5: 10.1 µg/m³

O'Hare 2

31.6 km PM2.5: 16.4 µg/m³

O'Hare 1

32.7 km PM2.5: 18.4 µg/m³

What cities are near Naperville?

44 Lisle 47 Woodridge 48 Wheaton 62 Downers Grove 41 Bolingbrook 42 West Chicago 59 Glen Ellyn 51 Carol Stream 63 Westmont 42 Aurora

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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 2026-10-20T20:05 UTC.