Yes
you do need a jacket based on the weather in Illinois, USA 1 second ago
Why? Because it's why-did-i-leave-my bed degrees out and it's fairly windy outside!
9°F-13°C & Clear
Wind is 12 mph20 km/h from the West, gusting to 21 mph34 km/h
| January 20 | ||||
| 1pm | 10°F-12°C | 14 mph22 km/h West | Mostly Clear | |
| 2pm | 11°F-12°C | 15 mph24 km/h West | Partly Cloudy | |
| 3pm | 12°F-11°C | 15 mph24 km/h West | Windy | |
| 4pm | 12°F-11°C | 15 mph24 km/h West | Windy | |
| 5pm | 12°F-11°C | 14 mph22 km/h West | Cloudy | |
| 6pm | 11°F-12°C | 10 mph16 km/h West | Mostly Cloudy | |
| 7pm | 10°F-12°C | 8 mph13 km/h West | Mostly Cloudy | |
| 8pm | 9°F-13°C | 9 mph14 km/h West | Mostly Cloudy | |
| 9pm | 8°F-13°C | 12 mph19 km/h Northwest | Cloudy | |
| 10pm | 7°F-14°C | 12 mph20 km/h Northwest | Cloudy | |
| 11pm | 5°F-15°C | 12 mph19 km/h Northwest | Cloudy | |
| January 21 | ||||
| 12am | 4°F-16°C | 12 mph20 km/h Northwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 20 | -1°F-18°C | 12°F-11°C | 10 mph17 km/h from West | Partly Cloudy | Mostly Cloudy |
| January 21 | -6°F-21°C | 5°F-15°C | 10 mph16 km/h from West | Clear | Partly Cloudy |
| January 22 | 3°F-16°C | 28°F-2°C | 14 mph23 km/h from South | Cloudy | Cloudy |
| January 23 | 16°F-9°C | 27°F-3°C | 9 mph14 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| January 24 | 13°F-11°C | 28°F-2°C | 7 mph11 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| January 25 | 23°F-5°C | 35°F1°C | 7 mph11 km/h from Southwest | Cloudy | Cloudy |
| January 26 | 22°F-6°C | 31°F-1°C | 7 mph12 km/h from Northwest | Mostly Cloudy | Partly Cloudy |
Yes
Low of -6°F-21°C, High of 5°F-15°CWind: 10 mph16 km/h
Precipitation: None