Yes
you do need a jacket based on the weather in Herndon, VA 20170, USA 1 second ago
Why? Because your nose hairs will turn into tiny icicles and the wind is harsh and biting!
22°F-5°C & Clear
Wind is 12 mph20 km/h from the Northwest, gusting to 24 mph38 km/h
| January 20 | ||||
| 10am | 22°F-5°C | 13 mph21 km/h Northwest | Mostly Clear | |
| 11am | 22°F-5°C | 14 mph23 km/h Northwest | Mostly Cloudy | |
| 12pm | 22°F-6°C | 13 mph21 km/h Northwest | Mostly Cloudy | |
| 1pm | 22°F-6°C | 13 mph21 km/h Northwest | Mostly Cloudy | |
| 2pm | 21°F-6°C | 13 mph21 km/h Northwest | Mostly Cloudy | |
| 3pm | 20°F-7°C | 12 mph20 km/h Northwest | Partly Cloudy | |
| 4pm | 19°F-7°C | 11 mph17 km/h Northwest | Partly Cloudy | |
| 5pm | 18°F-8°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 6pm | 17°F-9°C | 7 mph11 km/h Northwest | Mostly Clear | |
| 7pm | 15°F-9°C | 7 mph10 km/h Northwest | Mostly Clear | |
| 8pm | 14°F-10°C | 7 mph10 km/h Northwest | Mostly Clear | |
| 9pm | 13°F-10°C | 6 mph10 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 20 | 10°F-12°C | 24°F-5°C | 11 mph17 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| January 21 | 9°F-13°C | 20°F-7°C | 3 mph5 km/h from West | Cloudy | Partly Cloudy |
| January 22 | 6°F-14°C | 19°F-7°C | 6 mph9 km/h from Northwest | Mostly Clear | Partly Cloudy |
| January 23 | 12°F-11°C | 32°F-0°C | 3 mph5 km/h from South | Mostly Clear | Mostly Clear |
| January 24 | 17°F-8°C | 33°F0°C | 5 mph8 km/h from Northwest | Mostly Clear | Partly Cloudy |
| January 25 | 18°F-8°C | 38°F3°C | 5 mph7 km/h from Southwest | Mostly Clear | Mostly Cloudy |
| January 26 | 25°F-4°C | 40°F4°C | 3 mph5 km/h from Southwest | Cloudy | Mostly Cloudy |
Yes
Low of 9°F-13°C, High of 20°F-7°CWind: 3 mph5 km/h
Precipitation: None