Yes
you do need a jacket based on the weather in Herndon, VA 20170, USA 1 second ago
Why? Because it's quite chilly!
32°F0°C & Partly Cloudy
Wind is 4 mph6 km/h from the East, gusting to 9 mph14 km/h
| December 26 | ||||
| 9am | 33°F0°C | 4 mph6 km/h East | Partly Cloudy | |
| 10am | 35°F2°C | 4 mph7 km/h East | Partly Cloudy | |
| 11am | 38°F3°C | 4 mph7 km/h Southeast | Partly Cloudy | |
| 12pm | 40°F5°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 1pm | 42°F6°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 2pm | 43°F6°C | 3 mph5 km/h Southeast | Partly Cloudy | |
| 3pm | 43°F6°C | 3 mph5 km/h Southeast | Partly Cloudy | |
| 4pm | 43°F6°C | 3 mph5 km/h Southeast | Partly Cloudy | |
| 5pm | 40°F5°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 6pm | 38°F3°C | 4 mph6 km/h East | Mostly Clear | |
| 7pm | 36°F2°C | 4 mph7 km/h East | Mostly Clear | |
| 8pm | 34°F1°C | 4 mph7 km/h East | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 26 | 28°F-2°C | 43°F6°C | 4 mph6 km/h from East | Partly Cloudy | Partly Cloudy |
| December 27 | 28°F-2°C | 46°F8°C | 4 mph6 km/h from Southeast | Mostly Cloudy | Rain |
| December 28 | 40°F4°C | 53°F12°C | 5 mph8 km/h from South | Rain | Rain |
| December 29 | 53°F12°C | 61°F16°C | 12 mph20 km/h from South | Rain | Rain |
| December 30 | 43°F6°C | 55°F13°C | 8 mph12 km/h from Northwest | Mostly Clear | Partly Cloudy |
| December 31 | 39°F4°C | 53°F12°C | 7 mph11 km/h from Southeast | Rain | Drizzle |
| January 1 | 35°F2°C | 48°F9°C | 13 mph20 km/h from Northwest | Partly Cloudy | Partly Cloudy |
Yes
Low of 28°F-2°C, High of 46°F8°CWind: 4 mph6 km/h
Precipitation: None