| National Weather Service Forecast for:
Naperville, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: Sun, 18-Jan-2026 1:31pm CST | ||||||||||||||||||||||||||||||||||||||||
| Naperville | ||||||||||||||||||||||||||||||||||||||||
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Cold Weather Advisory issued January 18 at 2:19PM CST until January 19 at 12:00PM CST
Cold Weather Advisory issued January 18 at 10:53AM CST until January 19 at 10:00AM CST
| This Afternoon |
A chance of snow showers before 4pm, then snow. Mostly cloudy, with a high near 18. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible. |
| Tonight |
Snow before midnight, then scattered snow showers. Mostly cloudy. Low around 0, with temperatures rising to around 4 overnight. Wind chill values as low as -19. West wind 10 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible. |
| M.L. King Jr. Day |
Mostly sunny, with a high near 7. Wind chill values as low as -24. West northwest wind 15 to 25 mph, with gusts as high as 40 mph. |
| Monday Night |
Mostly cloudy, with a low around 4. Wind chill values as low as -11. West wind 5 to 15 mph, with gusts as high as 25 mph. |
| Tuesday |
Sunny, with a high near 21. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. |
| Tuesday Night |
A chance of snow. Mostly cloudy, with a low around 15. Chance of precipitation is 50%. New snow accumulation of less than one inch possible. |
| Wednesday |
A chance of snow before noon. Mostly cloudy, with a high near 29. New snow accumulation of less than half an inch possible. |
| Wednesday Night |
Mostly cloudy, with a low around 10. |
| Thursday |
Mostly sunny, with a high near 17. |
| Thursday Night |
Mostly cloudy, with a low around 6. |
| Friday |
A slight chance of snow after noon. Partly sunny, with a high near 18. |
| Friday Night |
A chance of snow. Mostly cloudy, with a low around 2. |
| Saturday |
A chance of snow. Partly sunny, with a high near 11. |
| Saturday Night |
A chance of snow. Mostly cloudy, with a low around -3. |
Forecast from NOAA-NWS
for Naperville, IL.
Animated forecast icons courtesy of www.meteotreviglio.com.