No
you don't need a jacket based on the weather in Illinois, USA 1 second ago
72°F22°C & Clear
Wind is 3 mph5 km/h from the Northwest, gusting to 4 mph7 km/h
| July 2 | ||||
| 12am | 71°F22°C | 3 mph4 km/h Northwest | Clear | |
| 1am | 69°F21°C | 3 mph4 km/h West | Clear | |
| 2am | 68°F20°C | 3 mph5 km/h West | Clear | |
| 3am | 67°F19°C | 4 mph7 km/h West | Clear | |
| 4am | 66°F19°C | 4 mph6 km/h West | Clear | |
| 5am | 65°F18°C | 4 mph6 km/h West | Clear | |
| 6am | 65°F18°C | 4 mph7 km/h West | Clear | |
| 7am | 65°F18°C | 3 mph5 km/h West | Mostly Clear | |
| 8am | 69°F20°C | 3 mph5 km/h West | Mostly Clear | |
| 9am | 73°F23°C | 3 mph5 km/h West | Mostly Clear | |
| 10am | 77°F25°C | 4 mph6 km/h West | Mostly Clear | |
| 11am | 80°F27°C | 5 mph7 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 1 | 67°F19°C | 84°F29°C | 3 mph5 km/h from Northwest | Clear | Clear |
| July 2 | 65°F18°C | 86°F30°C | 6 mph9 km/h from West | Mostly Clear | Clear |
| July 3 | 66°F19°C | 87°F31°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| July 4 | 69°F20°C | 90°F32°C | 8 mph13 km/h from South | Clear | Mostly Clear |
| July 5 | 71°F22°C | 90°F32°C | 11 mph18 km/h from South | Partly Cloudy | Partly Cloudy |
| July 6 | 73°F23°C | 86°F30°C | 11 mph17 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| July 7 | 70°F21°C | 86°F30°C | 7 mph10 km/h from West | Rain | Rain |
No
Low of 64°F18°C, High of 86°F30°CWind: 6 mph9 km/h
Precipitation: None