Live Weather & Forecast

Weather in Naperville

Q: What is the current weather in Naperville?

Current conditions in Naperville: Overcast, temperature 15°C, humidity 77%.

Q: What is the best time to visit Naperville?

The best time to visit Naperville is typically June – September. Warm, dry summers — ideal for outdoor activities.

Q: What are the GPS coordinates used for the weather forecast in Naperville?

The weather forecast for Naperville uses coordinates 41.7729, -88.1479.

Illinois, United States · Real-time conditions & 3-day outlook

15^°C

Feels like 15°C

59°F / Feels 59°F

Overcast

Naperville, Illinois

🌙 Nighttime

Updated: 2026-04-12 06:00

💧

Humidity

77%

💨

Wind

20.2 km/h S

🌬️

Wind Gust

33.4 km/h

🌡️

Pressure

1017 mb

👁️

Visibility

16 km

☀️

UV Index

0 (Low)

🌧️

Precipitation

0 mm

☁️

Cloud Cover

100%

💦

Dew Point

9.7°C

🌐

Wind Degree

180°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)

192.9 μg/m³

NO₂

6.7 μg/m³

O₃

93 μg/m³

SO₂

4.8 μg/m³

PM 2.5

7.9 μg/m³

PM 10

8.2 μg/m³

Weather Alerts 5

Met · Severe · Immediate

Flood Warning issued April 11 at 10:46AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Effective: 2026-04-11T10:46:00-05:00 · Expires: 2026-04-12T05:00:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 9:24PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois...Indiana... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane Counties. Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River...

Effective: 2026-04-11T21:24:00-05:00 · Expires: 2026-04-12T15:30:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 10:50AM CDT until April 14 at 1:00AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Indiana... Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Lake IN and Newton Counties. For the Kankakee River...including Dunns Bridge...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kankakee River from Near I-65 and...

Effective: 2026-04-11T10:50:00-05:00 · Expires: 2026-04-12T05:00:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 9:24PM CDT until April 14 at 1:00AM CDT by NWS Chicago IL

Effective: 2026-04-11T21:24:00-05:00 · Expires: 2026-04-12T15:30:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 10:43AM CDT until April 12 at 7:00AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Gurnee...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US...

Effective: 2026-04-11T10:43:00-05:00 · Expires: 2026-04-12T04:45:00-05:00

Today's Hourly Forecast

24-hour breakdown for Naperville, Illinois

12 AM

10°

Clear

💧 70% 💨 16.6 km/h

1 AM

10°

Clear

💧 68% 💨 14.8 km/h

2 AM

10°

Clear

💧 69% 💨 15.5 km/h

3 AM

10°

Clear

💧 74% 💨 16.6 km/h

4 AM

11°

Clear

💧 79% 💨 17.3 km/h

5 AM

12°

Clear

💧 83% 💨 18.4 km/h

6 AM

15°

Overcast

💧 77% 💨 20.2 km/h

7 AM

13°

Sunny

💧 87% 💨 21.6 km/h

8 AM

15°

Sunny

💧 84% 💨 22.7 km/h

9 AM

17°

Sunny

💧 80% 💨 23.4 km/h

10 AM

21°

Sunny

💧 75% 💨 26.3 km/h

11 AM

24°

Sunny

💧 66% 💨 27.7 km/h

12 PM

26°

Sunny

💧 60% 💨 28.4 km/h

1 PM

27°

Sunny

💧 54% 💨 29.5 km/h

2 PM

28°

Sunny

💧 48% 💨 29.2 km/h

3 PM

29°

Sunny

💧 45% 💨 28.8 km/h

4 PM

26°

Sunny

💧 43% 💨 24.8 km/h

5 PM

24°

Overcast

💧 63% 💨 20.2 km/h

6 PM

22°

Overcast

💧 70% 💨 15.8 km/h

7 PM

21°

Overcast

💧 84% 💨 19.4 km/h

8 PM

21°

Overcast

💧 69% 💨 26.6 km/h

9 PM

20°

Overcast

💧 70% 💨 25.2 km/h

10 PM

18°

Overcast

💧 81% 💨 27.7 km/h

11 PM

17°

Overcast

💧 97% 💨 28.4 km/h

3-Day Forecast

Daily overview for Naperville, Illinois

Today

Sunny

29° / 10°

🌧️ 0% chance of rain

💧 Avg. humidity: 71%

💨 Max wind: 29.5 km/h

🌧️ Total precip: 0 mm

☀️ UV Index: 1.1

🌅 Sunrise: 06:17 AM

🌇 Sunset: 07:30 PM

🌙 Waning Crescent

🌑 Moon: 33% lit

Mon, Apr 13

Heavy rain

23° / 16°

🌧️ 87% chance of rain

💧 Avg. humidity: 91%

💨 Max wind: 26.3 km/h

🌧️ Total precip: 21.49 mm

☀️ UV Index: 1

🌅 Sunrise: 06:15 AM

🌇 Sunset: 07:31 PM

🌙 Waning Crescent

🌑 Moon: 23% lit

Tue, Apr 14

Thundery outbreaks in nearby

26° / 19°

🌧️ 0% chance of rain

💧 Avg. humidity: 87%

💨 Max wind: 35.6 km/h

🌧️ Total precip: 0 mm

☀️ UV Index: 0.9

🌅 Sunrise: 06:13 AM

🌇 Sunset: 07:32 PM

🌙 Waning Crescent

🌑 Moon: 15% lit

Best Time to Visit Naperville

Plan your trip to Naperville, United States around the most favorable weather conditions.

Peak Season

June – September

Warm, dry summers — ideal for outdoor activities.

Shoulder Season

April – May, October

Fewer crowds, moderate prices, mild weather.

Off Season

November – March

Cooler temperatures; some regions may experience rain or snow.

← Back to Naperville 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Naperville?

Current conditions in Naperville: Overcast, temperature 15°C, humidity 77%.

What is the best time to visit Naperville?

The best time to visit Naperville is typically June – September. Warm, dry summers — ideal for outdoor activities.

What is the climate like in Naperville?

Naperville is located at approximately 41.8° latitude. It has a temperate climate with warm summers and cold winters.

Does it rain a lot in Naperville?

The wettest period in Naperville is typically during November – March. Cooler temperatures; some regions may experience rain or snow.

What should I pack for a trip to Naperville?

For visits to Naperville during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.

What country is Naperville in?

Naperville is located in United States, in the state of Illinois.

What are the public holidays in Naperville in 2026?

View the 2026 public holidays for Naperville on our Holidays page.

What are the GPS coordinates used for the weather forecast in Naperville?

The weather forecast for Naperville uses coordinates 41.7729, -88.1479.