Yes
you do need a jacket based on the weather in Chicago, IL 60647, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's fairly windy outside!
57°F14°C & Clear
Wind is 8 mph13 km/h from the South, gusting to 21 mph33 km/h
| September 5 | ||||
| 1am | 57°F14°C | 9 mph14 km/h South | Clear | |
| 2am | 56°F13°C | 10 mph16 km/h South | Mostly Cloudy | |
| 3am | 57°F14°C | 12 mph19 km/h Southwest | Cloudy | |
| 4am | 58°F14°C | 13 mph20 km/h Southwest | Cloudy | |
| 5am | 58°F14°C | 14 mph22 km/h Southwest | Partly Cloudy | |
| 6am | 58°F14°C | 12 mph20 km/h Southwest | Clear | |
| 7am | 58°F14°C | 11 mph18 km/h West | Clear | |
| 8am | 58°F15°C | 12 mph19 km/h West | Clear | |
| 9am | 59°F15°C | 13 mph21 km/h West | Clear | |
| 10am | 60°F16°C | 15 mph24 km/h West | Mostly Clear | |
| 11am | 62°F17°C | 16 mph25 km/h West | Windy | |
| 12pm | 64°F18°C | 15 mph25 km/h West | Windy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 4 | 49°F9°C | 67°F19°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 5 | 55°F13°C | 68°F20°C | 14 mph22 km/h from West | Partly Cloudy | Partly Cloudy |
| September 6 | 51°F10°C | 66°F19°C | 9 mph14 km/h from West | Partly Cloudy | Mostly Clear |
| September 7 | 50°F10°C | 66°F19°C | 7 mph11 km/h from Northwest | Mostly Clear | Clear |
| September 8 | 51°F10°C | 71°F22°C | 5 mph8 km/h from South | Clear | Partly Cloudy |
| September 9 | 54°F12°C | 75°F24°C | 8 mph13 km/h from South | Partly Cloudy | Mostly Cloudy |
| September 10 | 61°F16°C | 74°F24°C | 5 mph9 km/h from West | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 68°F20°CWind: 14 mph22 km/h
Precipitation: None