No
you don't need a jacket based on the weather in Naperville, IL, USA 1 second ago
81°F27°C & Clear
Wind is 5 mph8 km/h from the Southwest, gusting to 9 mph14 km/h
| September 26 | ||||
| 7pm | 79°F26°C | 5 mph8 km/h South | Clear | |
| 8pm | 74°F24°C | 5 mph8 km/h South | Clear | |
| 9pm | 72°F22°C | 5 mph9 km/h South | Clear | |
| 10pm | 69°F21°C | 6 mph9 km/h South | Clear | |
| 11pm | 67°F20°C | 6 mph10 km/h South | Clear | |
| September 27 | ||||
| 12am | 66°F19°C | 6 mph10 km/h South | Clear | |
| 1am | 64°F18°C | 6 mph10 km/h Southwest | Clear | |
| 2am | 63°F17°C | 6 mph9 km/h Southwest | Clear | |
| 3am | 62°F17°C | 5 mph9 km/h Southwest | Clear | |
| 4am | 61°F16°C | 5 mph9 km/h Southwest | Clear | |
| 5am | 60°F15°C | 5 mph8 km/h Southwest | Clear | |
| 6am | 59°F15°C | 5 mph7 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 26 | 53°F12°C | 81°F27°C | 4 mph6 km/h from Southwest | Clear | Clear |
| September 27 | 58°F14°C | 83°F28°C | 6 mph10 km/h from Southwest | Clear | Clear |
| September 28 | 59°F15°C | 83°F28°C | 4 mph6 km/h from Southeast | Mostly Clear | Clear |
| September 29 | 59°F15°C | 84°F29°C | 3 mph5 km/h from South | Clear | Mostly Clear |
| September 30 | 61°F16°C | 81°F27°C | 7 mph11 km/h from Northeast | Mostly Clear | Mostly Cloudy |
| October 1 | 61°F16°C | 76°F25°C | 8 mph14 km/h from East | Mostly Cloudy | Partly Cloudy |
| October 2 | 56°F13°C | 75°F24°C | 7 mph11 km/h from East | Partly Cloudy | Mostly Clear |
Yes
Low of 58°F15°C, High of 83°F29°CWind: 6 mph10 km/h
Precipitation: None