Yes
you do need a jacket based on the weather in Chicago, IL 60657, USA 1 second ago
Why? Because it's quite chilly!
38°F3°C & Cloudy
Wind is 6 mph9 km/h from the South, gusting to 10 mph16 km/h
| December 15 | ||||
| 8am | 38°F3°C | 6 mph9 km/h South | Cloudy | |
| 9am | 38°F3°C | 5 mph8 km/h South | Cloudy | |
| 10am | 39°F4°C | 4 mph6 km/h South | Cloudy | |
| 11am | 40°F5°C | 5 mph8 km/h South | Cloudy | |
| 12pm | 42°F5°C | 5 mph8 km/h South | Cloudy | |
| 1pm | 43°F6°C | 5 mph8 km/h South | Cloudy | |
| 2pm | 44°F7°C | 5 mph9 km/h South | Cloudy | |
| 3pm | 44°F7°C | 5 mph7 km/h South | Cloudy | |
| 4pm | 44°F7°C | 5 mph8 km/h South | Cloudy | |
| 5pm | 43°F6°C | 5 mph8 km/h South | Cloudy | |
| 6pm | 42°F6°C | 5 mph9 km/h South | Cloudy | |
| 7pm | 42°F5°C | 6 mph9 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 15 | 37°F3°C | 44°F7°C | 5 mph8 km/h from South | Cloudy | Drizzle |
| December 16 | 37°F3°C | 50°F10°C | 10 mph16 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| December 17 | 32°F0°C | 40°F5°C | 7 mph11 km/h from West | Mostly Cloudy | Cloudy |
| December 18 | 24°F-5°C | 35°F2°C | 9 mph15 km/h from Northwest | Partly Cloudy | Mostly Clear |
| December 19 | 20°F-7°C | 32°F-0°C | 7 mph11 km/h from South | Mostly Cloudy | Snow |
| December 20 | 24°F-5°C | 31°F-0°C | 11 mph18 km/h from Northwest | Snow | Partly Cloudy |
| December 21 | 18°F-8°C | 26°F-3°C | 9 mph14 km/h from Northwest | Partly Cloudy | Mostly Clear |
Yes
Low of 37°F3°C, High of 50°F10°CWind: 10 mph16 km/h
Precipitation: None