No
you don't need a jacket based on the weather in Exton, PA 19341, USA 1 second ago
68°F20°C & Mostly Cloudy
Wind is 2 mph3 km/h from the Northeast, gusting to 6 mph9 km/h
| September 10 | ||||
| 8pm | 67°F20°C | 2 mph3 km/h Northeast | Mostly Cloudy | |
| 9pm | 66°F19°C | 2 mph3 km/h Northeast | Mostly Cloudy | |
| 10pm | 65°F18°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 11pm | 64°F18°C | 3 mph4 km/h Northwest | Partly Cloudy | |
| September 11 | ||||
| 12am | 63°F17°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 1am | 61°F16°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 2am | 60°F16°C | 3 mph6 km/h Northwest | Mostly Cloudy | |
| 3am | 60°F16°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 4am | 59°F15°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 5am | 59°F15°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 6am | 58°F15°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 7am | 58°F15°C | 3 mph5 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 59°F15°C | 69°F21°C | 3 mph6 km/h from Northeast | Cloudy | Partly Cloudy |
| September 11 | 58°F15°C | 78°F26°C | 5 mph8 km/h from North | Mostly Clear | Mostly Clear |
| September 12 | 57°F14°C | 77°F25°C | 4 mph7 km/h from Northeast | Mostly Clear | Partly Cloudy |
| September 13 | 58°F15°C | 79°F26°C | 4 mph6 km/h from Southwest | Partly Cloudy | Mostly Clear |
| September 14 | 60°F15°C | 79°F26°C | 6 mph9 km/h from West | Partly Cloudy | Partly Cloudy |
| September 15 | 60°F15°C | 74°F23°C | 6 mph10 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| September 16 | 56°F14°C | 73°F23°C | 6 mph9 km/h from Northeast | Partly Cloudy | Mostly Clear |
Yes
Low of 58°F15°C, High of 78°F26°CWind: 5 mph8 km/h
Precipitation: None