Today | Weather | Tuesday, November 4, 2025

Weather in Naperville, Illinois

12:48 PM

Now

64° F

Feels Like 64°

Precipitation 0 %

Wind 10 mph

UV Index (0 - 11+) 3

Humidity 23 %

Today

Day 61°

Night 48°

Precipitation 25 %

Wind 8 mph

UV Index (0 - 11+) 3

Naperville Weather Forecast Updated

8 minutes ago

Last updated on November 04, 2025 12:39 PM

Weather Forecast History

Last Year's Weather on This Day (November 4, 2024)

Day

68°

Night

63°

Wind

16 mph

Precipitation

100

Air Quality in Naperville

NOW

41 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 7.55 µg/m³

PM₁₀ 8.22 µg/m³

O₃ 0.044 ppm

NO₂ 1.3 ppb

SO₂ 0.7 ppb

CO 0.12 ppm

NH₃ 0.36 µg/m³

NO 0.55 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 7.55 µg/m³

PM₁₀ – 8.22 µg/m³

O₃ – 86.15 µg/m³

NO₂ – 2.48 µg/m³

SO₂ – 1.95 µg/m³

CO – 142.86 µg/m³

NH₃ – 0.36 µg/m³

NO – 0.55 µg/m³

View Hourly Air Quality Forecast