| NWS Forecast for: Naperville IL Issued by: National Weather Service Chicago, IL Last Update: 2:56 am CDT Apr 19, 2026 | |
Today: A 30 percent chance of showers after 4pm. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 10. Southwest wind 10 to 20 km/h becoming west northwest 20 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h. Tonight: A 10 percent chance of showers before 7pm. Widespread frost, mainly after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around -1. North wind 15 to 20 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 30 km/h. Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 11. North wind 5 to 15 km/h becoming south in the afternoon. Monday Night: Partly cloudy, with a low around 6. South wind 15 to 20 km/h, with gusts as high as 35 km/h. Tuesday: Sunny, with a high near 23. Southwest wind 20 to 25 km/h, with gusts as high as 35 km/h. Tuesday Night: Mostly clear, with a low around 11. Wednesday: Sunny, with a high near 24. Wednesday Night: Mostly clear, with a low around 13. Thursday: Mostly sunny, with a high near 28. Thursday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 17. Friday: Showers likely. Mostly cloudy, with a high near 23. Friday Night: A chance of showers. Mostly cloudy, with a low around 8. Saturday: Mostly sunny, with a high near 18. | |
| Naperville IL 41.77°N 88.15°W | |
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