No
you don't need a jacket based on the weather in Herndon, VA 20170, USA 1 second ago
70°F21°C & Clear
Wind is 4 mph6 km/h from the Northwest, gusting to 8 mph13 km/h
| June 11 | ||||
| 9am | 72°F22°C | 5 mph8 km/h Northwest | Clear | |
| 10am | 74°F23°C | 4 mph7 km/h Northwest | Clear | |
| 11am | 77°F25°C | 5 mph7 km/h Northwest | Clear | |
| 12pm | 79°F26°C | 5 mph9 km/h West | Clear | |
| 1pm | 81°F27°C | 6 mph9 km/h West | Clear | |
| 2pm | 82°F28°C | 6 mph10 km/h West | Clear | |
| 3pm | 83°F28°C | 6 mph9 km/h West | Mostly Clear | |
| 4pm | 83°F29°C | 5 mph9 km/h West | Mostly Clear | |
| 5pm | 84°F29°C | 5 mph8 km/h West | Clear | |
| 6pm | 83°F28°C | 4 mph7 km/h Southwest | Clear | |
| 7pm | 82°F28°C | 4 mph6 km/h Southwest | Clear | |
| 8pm | 79°F26°C | 3 mph5 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 11 | 63°F17°C | 84°F29°C | 5 mph8 km/h from West | Clear | Mostly Clear |
| June 12 | 65°F18°C | 88°F31°C | 3 mph5 km/h from West | Partly Cloudy | Mostly Cloudy |
| June 13 | 68°F20°C | 88°F31°C | 5 mph7 km/h from Southeast | Mostly Cloudy | Thunderstorms |
| June 14 | 70°F21°C | 85°F29°C | 4 mph6 km/h from West | Thunderstorms | Thunderstorms |
| June 15 | 67°F20°C | 78°F26°C | 5 mph7 km/h from Southeast | Drizzle | Thunderstorms |
| June 16 | 64°F18°C | 75°F24°C | 7 mph12 km/h from East | Rain | Drizzle |
| June 17 | 64°F18°C | 78°F26°C | 3 mph5 km/h from East | Drizzle | Partly Cloudy |
No
Low of 65°F19°C, High of 89°F32°CWind: 3 mph5 km/h
Precipitation: None