Yes
you do need a jacket based on the weather in Chicago, IL, USA 1 second ago
Why? Because it's cold. simple as that.
43°F6°C & Cloudy
Wind is 6 mph9 km/h from the NE, gusting to 8 mph13 km/h
| December 2 | ||||
| 2pm | 43°F6°C | 6 mph10 km/h NE | Cloudy | |
| 3pm | 43°F6°C | 6 mph9 km/h NE | Cloudy | |
| 4pm | 42°F6°C | 6 mph9 km/h NE | Cloudy | |
| 5pm | 42°F5°C | 6 mph9 km/h NE | Cloudy | |
| 6pm | 41°F5°C | 5 mph9 km/h NE | Cloudy | |
| 7pm | 41°F5°C | 5 mph8 km/h NE | Cloudy | |
| 8pm | 41°F5°C | 5 mph8 km/h NE | Cloudy | |
| 9pm | 41°F5°C | 5 mph8 km/h E | Cloudy | |
| 10pm | 41°F5°C | 5 mph8 km/h E | Cloudy | |
| 11pm | 40°F5°C | 5 mph7 km/h E | Cloudy | |
| December 3 | ||||
| 12am | 40°F5°C | 5 mph7 km/h SE | Cloudy | |
| 1am | 40°F4°C | 5 mph9 km/h SE | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 2 | 40°F4°C | 43°F6°C | 6 mph9 km/h from NE | Cloudy | Rain |
| December 3 | 36°F2°C | 41°F5°C | 9 mph14 km/h from W | Drizzle | Mostly Cloudy |
| December 4 | 33°F0°C | 42°F5°C | 6 mph10 km/h from W | Partly Cloudy | Drizzle |
| December 5 | 35°F1°C | 40°F4°C | 10 mph16 km/h from NW | Cloudy | Mostly Cloudy |
| December 6 | 32°F-0°C | 40°F5°C | 6 mph10 km/h from W | Mostly Cloudy | Mostly Cloudy |
| December 7 | 36°F2°C | 52°F11°C | 10 mph16 km/h from SW | Partly Cloudy | Mostly Cloudy |
| December 8 | 41°F5°C | 52°F11°C | 11 mph17 km/h from W | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 36°F2°C, High of 41°F5°CWind: 9 mph14 km/h
Precipitation: 67% rain