| National Weather Service Forecast for:
Naperville, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: Sat, 29-Aug-2026 9:30pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Naperville | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. |
| Sunday |
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 9am, then a slight chance of showers and thunderstorms between 9am and 4pm, then scattered showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
Scattered showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 10pm. Mostly cloudy, with a low around 70. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. |
| Monday |
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 90. Heat index values as high as 96. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. |
| Monday Night |
Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. |
| Tuesday |
Mostly sunny, with a high near 92. |
| Tuesday Night |
Partly cloudy, with a low around 75. |
| Wednesday |
Mostly sunny, with a high near 93. |
| Wednesday Night |
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 72. |
| Thursday |
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. |
| Thursday Night |
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. |
| Friday |
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 86. |
| Friday Night |
Partly cloudy, with a low around 69. |
| Saturday |
Mostly sunny, with a high near 86. |
Forecast from NOAA-NWS
for Naperville, IL.
Animated forecast icons courtesy of www.meteotreviglio.com.