No
you don't need a jacket based on the weather in Chicago (South Side), Illinois, United States 1 second ago
64°F18°C & Clear
Wind is 5 mph8 km/h from the Northeast, gusting to 12 mph19 km/h
| September 12 | ||||
| 12am | 64°F18°C | 5 mph8 km/h Northeast | Clear | |
| 1am | 63°F17°C | 5 mph7 km/h Northeast | Clear | |
| 2am | 63°F17°C | 5 mph8 km/h Northeast | Clear | |
| 3am | 62°F17°C | 5 mph8 km/h Northeast | Clear | |
| 4am | 62°F17°C | 4 mph6 km/h Northeast | Clear | |
| 5am | 61°F16°C | 4 mph6 km/h East | Clear | |
| 6am | 61°F16°C | 4 mph7 km/h East | Mostly Clear | |
| 7am | 61°F16°C | 3 mph5 km/h East | Mostly Clear | |
| 8am | 61°F16°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 9am | 64°F18°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 10am | 68°F20°C | 3 mph5 km/h South | Mostly Clear | |
| 11am | 72°F22°C | 3 mph5 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 62°F17°C | 75°F24°C | 6 mph10 km/h from Northeast | Mostly Clear | Clear |
| September 12 | 61°F16°C | 83°F28°C | 4 mph6 km/h from Southeast | Mostly Clear | Mostly Cloudy |
| September 13 | 65°F18°C | 81°F27°C | 7 mph12 km/h from South | Mostly Cloudy | Partly Cloudy |
| September 14 | 68°F20°C | 85°F29°C | 6 mph9 km/h from Northeast | Clear | Clear |
| September 15 | 67°F19°C | 84°F29°C | 5 mph7 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 16 | 68°F20°C | 85°F29°C | 5 mph8 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 68°F20°C | 83°F28°C | 5 mph8 km/h from East | Mostly Clear | Mostly Clear |
No
Low of 61°F16°C, High of 83°F29°CWind: 4 mph6 km/h
Precipitation: None