No
you don't need a jacket based on the weather in Chicago, IL, USA 26 seconds ago
66°F19°C & Cloudy
Wind is 11 mph18 km/h from the West, gusting to 16 mph26 km/h
| September 6 | ||||
| 5pm | 66°F19°C | 10 mph16 km/h West | Cloudy | |
| 6pm | 65°F19°C | 10 mph15 km/h West | Cloudy | |
| 7pm | 64°F18°C | 9 mph14 km/h West | Cloudy | |
| 8pm | 62°F16°C | 7 mph12 km/h West | Cloudy | |
| 9pm | 60°F15°C | 8 mph12 km/h West | Mostly Cloudy | |
| 10pm | 58°F15°C | 8 mph12 km/h West | Cloudy | |
| 11pm | 57°F14°C | 8 mph13 km/h Northwest | Mostly Cloudy | |
| September 7 | ||||
| 12am | 55°F13°C | 8 mph13 km/h Northwest | Partly Cloudy | |
| 1am | 54°F12°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 2am | 53°F12°C | 7 mph11 km/h Northwest | Clear | |
| 3am | 52°F11°C | 6 mph10 km/h West | Clear | |
| 4am | 51°F10°C | 7 mph11 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 6 | 50°F10°C | 66°F19°C | 9 mph14 km/h from West | Partly Cloudy | Mostly Clear |
| September 7 | 49°F9°C | 67°F19°C | 6 mph10 km/h from Northwest | Mostly Clear | Clear |
| September 8 | 51°F10°C | 72°F22°C | 6 mph9 km/h from South | Clear | Mostly Clear |
| September 9 | 54°F12°C | 75°F24°C | 7 mph11 km/h from South | Partly Cloudy | Mostly Cloudy |
| September 10 | 59°F15°C | 79°F26°C | 4 mph6 km/h from Southeast | Partly Cloudy | Mostly Clear |
| September 11 | 62°F17°C | 77°F25°C | 7 mph11 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 12 | 62°F16°C | 78°F26°C | 7 mph12 km/h from East | Mostly Clear | Partly Cloudy |
Yes
Low of 49°F10°C, High of 67°F20°CWind: 6 mph10 km/h
Precipitation: None