| National Weather Service Forecast for:
Naperville, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: Sat, 18-Apr-2026 7:01pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Naperville | ||||||||||||||||||||||||||||||||||||||||
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Freeze Watch issued April 18 at 8:35PM CDT until April 20 at 9:00AM CDT
Frost Advisory issued April 18 at 8:35PM CDT until April 19 at 9:00AM CDT
Freeze Watch issued April 18 at 1:29PM CDT until April 20 at 9:00AM CDT
Frost Advisory issued April 18 at 1:29PM CDT until April 19 at 9:00AM CDT
| Tonight |
Areas of frost after 1am. Mostly clear, with a low around 34. West southwest wind 5 to 15 mph, with gusts as high as 25 mph. |
| Sunday |
Areas of frost before 8am, then a chance of rain showers. Partly sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. |
| Sunday Night |
A chance of rain showers before 7pm, then widespread frost. Mostly clear, with a low around 30. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. |
| Monday |
Widespread frost before 8am. Sunny, with a high near 54. Southeast wind 0 to 10 mph. |
| Monday Night |
Partly cloudy, with a low around 43. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Tuesday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 20%. |
| Tuesday Night |
A slight chance of rain showers before 1am. Partly cloudy, with a low around 50. |
| Wednesday |
Mostly sunny, with a high near 74. |
| Wednesday Night |
Mostly clear, with a low around 54. |
| Thursday |
Mostly sunny, with a high near 81. |
| Thursday Night |
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 61. |
| Friday |
A chance of rain showers before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 72. |
| Friday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 45. |
| Saturday |
A chance of rain showers. Partly sunny, with a high near 63. |
Forecast from NOAA-NWS
for Naperville, IL.
Animated forecast icons courtesy of www.meteotreviglio.com.