What is the air quality in Naperville today?

The current Air Quality Index (AQI) in Naperville is 38 (Good). PM2.5 concentration is 9.1 µg/m³.

What is the temperature in Naperville right now?

The current temperature in Naperville is 28.2°C (feels like 30.2°C). Humidity is 47.6% and wind speed is 22.9 km/h.

Is it safe to go outside in Naperville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 19.9 (Extreme).

Air Quality in Naperville, United States

Clear

28.2°C · 47.6% humidity

28.2°

Feels 30.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

25 9am

38 12pm

29 3pm

26 6pm

28 9pm

27 12am

27 3am

83 6am

Air Quality Index Trend

47h · 1 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.

47.6%

Humidity

22.9 km/h

Wind N

1014.3 hPa

Pressure

19.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.1 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Naperville?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.59.1 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX19.9

Extreme

Station readings (1 station within 25 km)

9.1

Median

9.1

Average

9.1

Low

9.1

High

PM2.5 µg/m³ · Model: 7.1 · Bias: -2.0

What is the 7-day forecast for Naperville?

07-21

28.2° 21.6°

1.19 mm

07-22

24.0° 17.6°

0.06 mm

07-23

22.3° 16.1°

5.31 mm

07-24

26.9° 15.8°

07-25

22.9° 17.5°

0.25 mm

07-26

25.4° 20.2°

1.75 mm

07-27

24.7° 19.1°

0.75 mm

Both models agree Avg diff: 4.2°C

Where are air quality stations near Naperville?

Schiller Park Collocation 2

30.0 km PM2.5: 7.5 µg/m³

Schiller Park Collocation 3

30.0 km PM2.5: 10.7 µg/m³

Schiller Park Collocation 1

30.0 km PM2.5: 13.6 µg/m³

O'Hare 2

31.6 km PM2.5: 11.4 µg/m³

O'Hare 1

32.7 km PM2.5: 12.8 µg/m³

What cities are near Naperville?

41 Lisle 41 Woodridge 44 Wheaton 49 Downers Grove 38 Bolingbrook 38 West Chicago 48 Glen Ellyn 45 Carol Stream 49 Westmont 38 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 2026-07-21T17:13 UTC.