Yes
you do need a jacket based on the weather in Chicago, IL 60641, USA 1 second ago
Why? Because the temperature has dropped below freezing and there are strong winds blowing out there!
11°F-11°C & Windy
Wind is 16 mph25 km/h from the West, gusting to 27 mph44 km/h
| December 12 | ||||
| 3am | 11°F-12°C | 16 mph25 km/h West | Windy | |
| 4am | 10°F-12°C | 15 mph24 km/h West | Windy | |
| 5am | 9°F-13°C | 14 mph23 km/h West | Clear | |
| 6am | 9°F-13°C | 14 mph22 km/h West | Clear | |
| 7am | 8°F-13°C | 13 mph21 km/h West | Clear | |
| 8am | 8°F-13°C | 12 mph20 km/h West | Clear | |
| 9am | 9°F-13°C | 12 mph19 km/h West | Clear | |
| 10am | 10°F-12°C | 11 mph18 km/h West | Clear | |
| 11am | 12°F-11°C | 11 mph18 km/h West | Partly Cloudy | |
| 12pm | 14°F-10°C | 11 mph17 km/h West | Mostly Cloudy | |
| 1pm | 16°F-9°C | 10 mph17 km/h West | Mostly Cloudy | |
| 2pm | 17°F-8°C | 10 mph16 km/h West | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 12 | 8°F-13°C | 19°F-7°C | 10 mph16 km/h from West | Mostly Cloudy | Mostly Clear |
| December 13 | 13°F-11°C | 31°F-1°C | 6 mph10 km/h from East | Mostly Cloudy | Mostly Cloudy |
| December 14 | 27°F-3°C | 40°F4°C | 11 mph17 km/h from Southeast | Rain | Rain |
| December 15 | 38°F3°C | 46°F8°C | 5 mph8 km/h from South | Cloudy | Cloudy |
| December 16 | 36°F2°C | 49°F10°C | 10 mph16 km/h from South | Rain | Rain |
| December 17 | 29°F-2°C | 41°F5°C | 12 mph19 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| December 18 | 25°F-4°C | 33°F1°C | 6 mph10 km/h from North | Snow | Mostly Cloudy |
Yes
Low of 13°F-11°C, High of 31°F-1°CWind: 6 mph10 km/h
Precipitation: None