Today | Weather | Wednesday, October 15, 2025

Weather in Naperville, Illinois

11:13 AM

Now

61° F

Feels Like 57°

Precipitation 47 %

Wind 9 mph

UV Index (0 - 11+) 7

Humidity 72 %

Today

Day 63°

Night 54°

Precipitation 55 %

Wind 9 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Naperville Weather Forecast Updated

Weather Forecast History

Last Year's Weather on This Day (October 15, 2024)

Day

54°

Night

36°

Wind

9 mph

Precipitation

Air Quality in Naperville

NOW

46 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 10.96 µg/m³

PM₁₀ 12 µg/m³

O₃ 0.024 ppm

NO₂ 5.3 ppb

SO₂ 0.8 ppb

CO 0.17 ppm

NH₃ 1.51 µg/m³

NO 0.64 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 – 10.96 µg/m³

PM₁₀ – 12 µg/m³

O₃ – 47.49 µg/m³

NO₂ – 9.96 µg/m³

SO₂ – 1.98 µg/m³

CO – 189.43 µg/m³

NH₃ – 1.51 µg/m³

NO – 0.64 µg/m³

View Hourly Air Quality Forecast