Yes
you do need a jacket based on the weather in Horsham, PA, USA 1 second ago
Why? Because it's why-did-i-leave-my bed degrees out and the wind is harsh and biting!
22°F-6°C & Clear
Wind is 10 mph16 km/h from the Northwest, gusting to 21 mph34 km/h
| January 20 | ||||
| 11am | 22°F-5°C | 11 mph17 km/h Northwest | Clear | |
| 12pm | 23°F-5°C | 12 mph20 km/h Northwest | Mostly Clear | |
| 1pm | 23°F-5°C | 13 mph21 km/h West | Partly Cloudy | |
| 2pm | 22°F-5°C | 14 mph22 km/h West | Mostly Cloudy | |
| 3pm | 22°F-6°C | 13 mph21 km/h West | Mostly Cloudy | |
| 4pm | 20°F-7°C | 12 mph19 km/h West | Mostly Cloudy | |
| 5pm | 18°F-8°C | 10 mph16 km/h West | Partly Cloudy | |
| 6pm | 18°F-8°C | 9 mph15 km/h West | Mostly Clear | |
| 7pm | 16°F-9°C | 9 mph14 km/h West | Mostly Clear | |
| 8pm | 15°F-9°C | 8 mph14 km/h West | Mostly Clear | |
| 9pm | 14°F-10°C | 8 mph13 km/h West | Mostly Clear | |
| 10pm | 13°F-10°C | 8 mph13 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 20 | 11°F-12°C | 23°F-5°C | 10 mph16 km/h from West | Mostly Clear | Mostly Clear |
| January 21 | 7°F-14°C | 17°F-8°C | 7 mph11 km/h from West | Mostly Cloudy | Partly Cloudy |
| January 22 | 7°F-14°C | 18°F-8°C | 6 mph9 km/h from Northwest | Mostly Clear | Partly Cloudy |
| January 23 | 12°F-11°C | 28°F-2°C | 4 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| January 24 | 18°F-8°C | 30°F-1°C | 6 mph9 km/h from Northwest | Clear | Clear |
| January 25 | 16°F-9°C | 33°F1°C | 8 mph13 km/h from West | Mostly Clear | Mostly Cloudy |
| January 26 | 26°F-3°C | 39°F4°C | 6 mph10 km/h from West | Cloudy | Mostly Cloudy |
Yes
Low of 7°F-14°C, High of 17°F-9°CWind: 7 mph11 km/h
Precipitation: None