No
you don't need a jacket based on the weather in Herndon, VA 20171, USA 1 second ago
71°F22°C & Cloudy
Wind is 7 mph11 km/h from the North, gusting to 12 mph19 km/h
| September 10 | ||||
| 4pm | 72°F22°C | 7 mph11 km/h North | Partly Cloudy | |
| 5pm | 72°F22°C | 6 mph9 km/h Northeast | Partly Cloudy | |
| 6pm | 72°F22°C | 5 mph8 km/h Northeast | Partly Cloudy | |
| 7pm | 70°F21°C | 4 mph6 km/h Northeast | Partly Cloudy | |
| 8pm | 69°F20°C | 4 mph6 km/h Northeast | Partly Cloudy | |
| 9pm | 67°F20°C | 4 mph6 km/h East | Partly Cloudy | |
| 10pm | 66°F19°C | 3 mph5 km/h Northeast | Mostly Cloudy | |
| 11pm | 65°F19°C | 3 mph5 km/h Northeast | Mostly Cloudy | |
| September 11 | ||||
| 12am | 65°F18°C | 3 mph4 km/h North | Mostly Cloudy | |
| 1am | 64°F18°C | 3 mph5 km/h North | Mostly Cloudy | |
| 2am | 63°F17°C | 3 mph5 km/h North | Mostly Cloudy | |
| 3am | 62°F17°C | 3 mph5 km/h North | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 58°F15°C | 72°F22°C | 4 mph7 km/h from North | Mostly Cloudy | Mostly Cloudy |
| September 11 | 61°F16°C | 79°F26°C | 3 mph5 km/h from North | Partly Cloudy | Mostly Clear |
| September 12 | 58°F14°C | 79°F26°C | 5 mph7 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 13 | 58°F14°C | 81°F27°C | 3 mph5 km/h from South | Mostly Clear | Mostly Clear |
| September 14 | 61°F16°C | 82°F28°C | 5 mph8 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 15 | 61°F16°C | 79°F26°C | 7 mph11 km/h from North | Mostly Clear | Mostly Clear |
| September 16 | 60°F16°C | 78°F25°C | 6 mph9 km/h from North | Mostly Clear | Mostly Clear |
No
Low of 61°F16°C, High of 80°F27°CWind: 3 mph5 km/h
Precipitation: 6% rain