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City of Naperville, ILNaperville, IL 7-Day Weather Forecast
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Naperville Weather Forecast
Naperville, IL Weather Forecast Date: 121 AM CDT Wed Sep 16 2026
Weather forecast for Naperville, IL
Tonight Lo: 65°F Lo: 18°C |
Tonight... Cloudy. A chance of showers. A slight chance of thunderstorms late. Lows in the mid 60s. Northeast winds around 5 mph. Chance of precipitation 50%. |
Wed Hi: 71°FHi: 22°C Lo: 65°F Lo: 18°C |
Wednesday... Mostly cloudy. A chance of showers early in the morning, then a slight chance of showers late in the morning. A chance of showers in the afternoon. Highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of precipitation 40%. |
| Thu Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Thursday... Mostly cloudy. A chance of showers in the morning. Humid with highs in the upper 70s. Northwest winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50%. |
| Fri Hi: 75°FHi: 24°C Lo: 65°F Lo: 18°C |
Friday... Mostly cloudy. A slight chance of showers in the afternoon. Highs in the mid 70s. Chance of precipitation 20%. |
Sat Hi: 80°FHi: 27°C Lo: 65°F Lo: 18°C |
Saturday... Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs around 80. Chance of precipitation 80%. |
| Sun Hi: 71°FHi: 22°C Lo: 61°F Lo: 16°C |
Sunday... Mostly cloudy with a chance of showers. Highs in the lower 70s. Chance of precipitation 50%. |
| Mon Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Monday... Mostly cloudy with a chance of showers. Highs in the lower 70s. Chance of precipitation 50%. |
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