🇺🇸 Weather in Naperville
Current Weather in Naperville
Beach Hazards Statement issued July 21 at 9:03PM CDT until July 22 at 10:00PM CDT by NWS Chicago IL
16°C
Feels like 16°C. Partly cloudy.
Map Overlays:
Hourly Forecast for Naperville
06:00
15°
8%
07:00
17°
5%
08:00
18°
3%
09:00
20°
2%
10:00
21°
1%
11:00
22°
1%
12:00
23°
1%
13:00
24°
1%
14:00
24°
1%
15:00
25°
1%
16:00
25°
2%
17:00
25°
1%
18:00
21°
6%
19:00
20°
8%
20:00
18°
8%
21:00
18°
7%
22:00
16°
8%
23:00
16°
5%
00:00
15°
6%
01:00
14°
8%
02:00
14°
8%
03:00
13°
9%
04:00
13°
8%
05:00
13°
8%
14-Day Forecast for Naperville
2026-07-22
Sunny
25° /
15°
2026-07-23
Sunny
24° /
13°
2026-07-24
Partly Cloudy
24° /
16°
2026-07-25
Cloudy
24° /
15°
2026-07-26
Mist
32° /
21°
2026-07-27
Sunny
33° /
22°
2026-07-28
Sunny
30° /
20°
Additional Forecasts for Naperville
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 118.0 μg/m³
O₃ (Ozone) 56.0 μg/m³
NO₂ (Nitrogen Dioxide) 8.6 μg/m³
SO₂ (Sulphur Dioxide) 1.3 μg/m³
PM2.5 (Fine particles) 3.3 μg/m³
PM10 (Coarse particles) 3.3 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in Naperville — FAQ
Answers refreshed each request based on current conditions in Naperville.
What is the weather like right now in Naperville?
Right now in Naperville, United States the temperature is 16.1°C (feels like 16.1°C), with partly cloudy. Relative humidity is 83% and wind is 13.0 km/h.
What is today's high and low temperature in Naperville?
Today's forecast high in Naperville is 25.2°C and the overnight low is 15.3°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Naperville today?
The chance of precipitation in Naperville today is 4%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Naperville differ from nearby cities?
Even short distances can change temperatures noticeably. Naperville's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.