Yes
you do need a jacket based on the weather in Jefferson, WI 53549, USA 1 second ago
Why? Because it's cold enough to freeze the brass off a bald monkey!
18°F-8°C & Cloudy
Wind is 8 mph13 km/h from the North, gusting to 14 mph23 km/h
| January 5 | ||||
| 2pm | 19°F-7°C | 9 mph14 km/h North | Cloudy | |
| 3pm | 20°F-7°C | 10 mph16 km/h North | Cloudy | |
| 4pm | 21°F-6°C | 11 mph17 km/h North | Cloudy | |
| 5pm | 20°F-7°C | 11 mph18 km/h North | Cloudy | |
| 6pm | 19°F-7°C | 11 mph18 km/h North | Cloudy | |
| 7pm | 18°F-8°C | 10 mph17 km/h Northeast | Cloudy | |
| 8pm | 17°F-8°C | 9 mph15 km/h North | Cloudy | |
| 9pm | 16°F-9°C | 11 mph17 km/h North | Cloudy | |
| 10pm | 16°F-9°C | 10 mph17 km/h North | Cloudy | |
| 11pm | 16°F-9°C | 11 mph17 km/h North | Cloudy | |
| January 6 | ||||
| 12am | 17°F-8°C | 13 mph20 km/h North | Cloudy | |
| 1am | 17°F-8°C | 13 mph22 km/h North | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 5 | 7°F-14°C | 21°F-6°C | 9 mph15 km/h from North | Mostly Cloudy | Mostly Cloudy |
| January 6 | 15°F-10°C | 27°F-3°C | 13 mph21 km/h from North | Partly Cloudy | Mostly Clear |
| January 7 | 13°F-11°C | 26°F-4°C | 7 mph12 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| January 8 | 11°F-11°C | 20°F-7°C | 7 mph11 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| January 9 | 11°F-12°C | 27°F-3°C | 8 mph13 km/h from South | Mostly Clear | Mostly Cloudy |
| January 10 | 19°F-8°C | 30°F-1°C | 7 mph11 km/h from Southwest | Cloudy | Cloudy |
| January 11 | 20°F-7°C | 30°F-1°C | 8 mph13 km/h from Northwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 15°F-10°C, High of 28°F-3°CWind: 13 mph21 km/h
Precipitation: None