No
you don't need a jacket based on the weather in Herndon, VA 20170, USA 1 second ago
73°F23°C & Mostly Clear
Wind is 4 mph6 km/h from the Southeast, gusting to 9 mph14 km/h
| July 13 | ||||
| 5am | 73°F23°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 6am | 73°F23°C | 2 mph4 km/h Southeast | Mostly Cloudy | |
| 7am | 74°F23°C | 3 mph5 km/h Southeast | Cloudy | |
| 8am | 76°F24°C | 3 mph6 km/h Southeast | Mostly Cloudy | |
| 9am | 78°F26°C | 4 mph6 km/h Southeast | Mostly Cloudy | |
| 10am | 80°F27°C | 4 mph6 km/h Southeast | Mostly Cloudy | |
| 11am | 82°F28°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 12pm | 84°F29°C | 4 mph6 km/h Southeast | Partly Cloudy | |
| 1pm | 84°F29°C | 5 mph7 km/h Southeast | Partly Cloudy | |
| 2pm | 85°F30°C | 5 mph8 km/h Southeast | Partly Cloudy | |
| 3pm | 86°F30°C | 5 mph9 km/h Southeast | Partly Cloudy | |
| 4pm | 86°F30°C | 5 mph9 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 13 | 73°F23°C | 86°F30°C | 5 mph7 km/h from Southeast | Thunderstorms | Thunderstorms |
| July 14 | 73°F23°C | 85°F30°C | 4 mph6 km/h from South | Rain | Rain |
| July 15 | 73°F23°C | 86°F30°C | 3 mph5 km/h from Southeast | Thunderstorms | Thunderstorms |
| July 16 | 74°F23°C | 88°F31°C | 6 mph9 km/h from South | Thunderstorms | Thunderstorms |
| July 17 | 74°F24°C | 90°F32°C | 6 mph9 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| July 18 | 76°F24°C | 88°F31°C | 5 mph8 km/h from West | Thunderstorms | Thunderstorms |
| July 19 | 73°F23°C | 86°F30°C | 4 mph7 km/h from Northwest | Partly Cloudy | Partly Cloudy |
No
Low of 73°F23°C, High of 85°F30°CWind: 4 mph6 km/h
Precipitation: 57% rain