No
you don't need a jacket based on the weather in Chicago, IL, USA 5 minutes ago
74°F24°C & Clear
Wind is 9 mph15 km/h from the Northeast, gusting to 12 mph20 km/h
| September 11 | ||||
| 4pm | 74°F24°C | 10 mph16 km/h Northeast | Clear | |
| 5pm | 74°F23°C | 11 mph18 km/h Northeast | Clear | |
| 6pm | 73°F23°C | 10 mph16 km/h Northeast | Clear | |
| 7pm | 72°F22°C | 10 mph16 km/h Northeast | Clear | |
| 8pm | 70°F21°C | 9 mph15 km/h Northeast | Clear | |
| 9pm | 69°F20°C | 9 mph14 km/h Northeast | Clear | |
| 10pm | 67°F20°C | 9 mph14 km/h Northeast | Clear | |
| 11pm | 66°F19°C | 7 mph11 km/h Northeast | Clear | |
| September 12 | ||||
| 12am | 65°F19°C | 7 mph11 km/h Northeast | Clear | |
| 1am | 65°F18°C | 6 mph9 km/h Northeast | Clear | |
| 2am | 64°F18°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 3am | 63°F17°C | 5 mph8 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 64°F18°C | 75°F24°C | 8 mph13 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 12 | 61°F16°C | 82°F28°C | 4 mph7 km/h from Southeast | Mostly Clear | Partly Cloudy |
| September 13 | 64°F18°C | 82°F28°C | 7 mph11 km/h from South | Mostly Cloudy | Partly Cloudy |
| September 14 | 67°F19°C | 85°F29°C | 6 mph9 km/h from East | Clear | Mostly Clear |
| September 15 | 69°F20°C | 84°F29°C | 4 mph7 km/h from Northeast | Mostly Clear | Partly Cloudy |
| September 16 | 68°F20°C | 85°F29°C | 5 mph7 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 68°F20°C | 81°F27°C | 5 mph8 km/h from East | Partly Cloudy | Mostly Clear |
No
Low of 61°F16°C, High of 82°F28°CWind: 4 mph7 km/h
Precipitation: None