No
you don't need a jacket based on the weather in Chicago, IL 60638, USA 1 second ago
59°F15°C & Partly Cloudy
Wind is 3 mph5 km/h from the South, gusting to 10 mph16 km/h
| September 10 | ||||
| 6am | 59°F15°C | 4 mph6 km/h South | Mostly Clear | |
| 7am | 58°F14°C | 4 mph6 km/h South | Mostly Clear | |
| 8am | 58°F14°C | 3 mph5 km/h South | Mostly Clear | |
| 9am | 61°F16°C | 3 mph5 km/h South | Mostly Clear | |
| 10am | 65°F18°C | 4 mph6 km/h South | Mostly Clear | |
| 11am | 69°F21°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 12pm | 74°F23°C | 3 mph4 km/h Southwest | Mostly Clear | |
| 1pm | 76°F25°C | 3 mph5 km/h South | Mostly Clear | |
| 2pm | 78°F26°C | 3 mph5 km/h South | Mostly Clear | |
| 3pm | 79°F26°C | 3 mph5 km/h South | Partly Cloudy | |
| 4pm | 80°F27°C | 4 mph6 km/h South | Partly Cloudy | |
| 5pm | 80°F27°C | 4 mph7 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 57°F14°C | 80°F27°C | 3 mph6 km/h from South | Mostly Clear | Partly Cloudy |
| September 11 | 61°F16°C | 80°F26°C | 5 mph8 km/h from East | Mostly Clear | Clear |
| September 12 | 61°F16°C | 84°F29°C | 4 mph7 km/h from South | Mostly Clear | Mostly Cloudy |
| September 13 | 67°F19°C | 87°F31°C | 8 mph12 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 14 | 68°F20°C | 82°F28°C | 6 mph10 km/h from Northeast | Clear | Clear |
| September 15 | 66°F19°C | 81°F27°C | 6 mph9 km/h from East | Partly Cloudy | Partly Cloudy |
| September 16 | 63°F17°C | 81°F27°C | 5 mph8 km/h from Southeast | Partly Cloudy | Partly Cloudy |
No
Low of 61°F16°C, High of 80°F27°CWind: 5 mph8 km/h
Precipitation: None