No
you don't need a jacket based on the weather in Fairfax, VA, USA 1 second ago
64°F18°C & Cloudy
Wind is 4 mph7 km/h from the North, gusting to 11 mph17 km/h
| September 18 | ||||
| 5am | 64°F18°C | 5 mph8 km/h North | Cloudy | |
| 6am | 63°F17°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 7am | 63°F17°C | 3 mph5 km/h North | Mostly Cloudy | |
| 8am | 63°F17°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 9am | 66°F19°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 10am | 69°F20°C | 4 mph6 km/h Northwest | Partly Cloudy | |
| 11am | 71°F22°C | 4 mph6 km/h Northwest | Partly Cloudy | |
| 12pm | 74°F24°C | 3 mph6 km/h Northwest | Mostly Clear | |
| 1pm | 77°F25°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 2pm | 79°F26°C | 3 mph5 km/h Northwest | Clear | |
| 3pm | 80°F27°C | 4 mph6 km/h West | Clear | |
| 4pm | 81°F27°C | 4 mph6 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 63°F17°C | 81°F27°C | 3 mph5 km/h from Northwest | Mostly Clear | Clear |
| September 19 | 61°F16°C | 84°F29°C | 4 mph6 km/h from Northwest | Clear | Partly Cloudy |
| September 20 | 62°F16°C | 77°F25°C | 6 mph10 km/h from East | Mostly Clear | Mostly Cloudy |
| September 21 | 62°F17°C | 75°F24°C | 6 mph9 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 22 | 62°F17°C | 78°F26°C | 6 mph10 km/h from South | Partly Cloudy | Partly Cloudy |
| September 23 | 64°F18°C | 83°F28°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 24 | 65°F18°C | 81°F27°C | 5 mph8 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
No
Low of 61°F16°C, High of 84°F29°CWind: 4 mph6 km/h
Precipitation: None