Naperville, IL Weather


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The most pleasant months of the year for Naperville are June, September and August. In Naperville, there are 5 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Naperville with an average high temperature of 83.8°, which ranks it as cooler than most places in Illinois. January is the snowiest month in Naperville with 9.1 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - Naperville, IL

11 AM PST

Showers And Thunderstorms

62°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonShowers And Thunderstorms62° / 58°SE 15 to 20 mph
SaturdaySlight Chance Showers And Thunderstorms80° / 64°SSW 20 mph
SundayChance Showers And Thunderstorms79° / 63°S 10 to 20 mph
MondayShowers And Thunderstorms75° / 54°SSW 15 to 20 mph
TuesdaySlight Chance Rain Showers then Mostly Sunny76° / 58°SW 5 to 15 mph
WednesdayChance Showers And Thunderstorms77° / 54°W 10 to 15 mph
ThursdayChance Showers And Thunderstorms69° / 48°SW 10 to 15 mph

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 15
Rain: averages 39 inches of rain a year
Snow: averages 29 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Naperville area is 8.9 (10=best), which means it is more comfortable than most places in Illinois.

8.9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31° 15°
February35° 18°
March47° 27°
April60° 38°
May70° 48°
June80° 59°
July84° 63°
August81° 61°
September75° 52°
October63° 41°
November48° 30°
December35° 19°
Hot, Freezing, Rainy, Snowy Days: Naperville
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January028106
February02595
March022113
April08110
May00120
June20110
July30100
August20100
September1080
October0690
November019101
December028116

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Naperville
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Naperville has a lot to offer. The schools are top notch, it is close to Chicago with a commuter rail that is easily accessible and fast, there are lots of parks and  More

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Over 2 years ago

Lived around the area my whole life, moved to the downtown Naperville 7 years ago and wow has it changed and not for the better. There is way too much traffic and no  More

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Over 6 years ago

Went with my real estate agent to check out a few houses in Naperville.First impression was the town was adorable especially the downtown but way too many people.couldnt  More

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