Yes
you do need a jacket based on the weather in Bethlehem, PA, USA 1 second ago
Why? Because it's colder than a polar bear's pyjamas!
13°F-10°C & Clear
Wind is 6 mph9 km/h from the Northwest, gusting to 16 mph25 km/h
| December 22 | ||||
| 6am | 13°F-11°C | 6 mph10 km/h Northwest | Clear | |
| 7am | 13°F-11°C | 6 mph10 km/h Northwest | Clear | |
| 8am | 13°F-10°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 9am | 15°F-9°C | 7 mph12 km/h Northwest | Mostly Clear | |
| 10am | 17°F-8°C | 8 mph12 km/h Northwest | Mostly Clear | |
| 11am | 19°F-7°C | 8 mph12 km/h Northwest | Mostly Clear | |
| 12pm | 21°F-6°C | 8 mph13 km/h Northwest | Clear | |
| 1pm | 23°F-5°C | 8 mph13 km/h Northwest | Clear | |
| 2pm | 24°F-5°C | 8 mph12 km/h Northwest | Clear | |
| 3pm | 23°F-5°C | 7 mph12 km/h Northwest | Clear | |
| 4pm | 22°F-6°C | 6 mph10 km/h Northwest | Clear | |
| 5pm | 20°F-7°C | 5 mph9 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 22 | 12°F-11°C | 24°F-5°C | 7 mph11 km/h from Northwest | Clear | Clear |
| December 23 | 8°F-13°C | 27°F-3°C | 3 mph4 km/h from South | Partly Cloudy | Cloudy |
| December 24 | 22°F-5°C | 38°F3°C | 4 mph6 km/h from West | Snow | Partly Cloudy |
| December 25 | 23°F-5°C | 37°F3°C | 3 mph4 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| December 26 | 24°F-5°C | 38°F3°C | 2 mph3 km/h from North | Partly Cloudy | Partly Cloudy |
| December 27 | 21°F-6°C | 37°F3°C | 3 mph5 km/h from East | Partly Cloudy | Mostly Cloudy |
| December 28 | 24°F-4°C | 39°F4°C | 3 mph5 km/h from East | Mostly Cloudy | Cloudy |
Yes
Low of 9°F-13°C, High of 28°F-3°CWind: 3 mph4 km/h
Precipitation: None