No
you don't need a jacket based on the weather in Pennsylvania, USA 1 second ago
84°F29°C & Clear
Wind is 5 mph8 km/h from the North, gusting to 10 mph16 km/h
| September 18 | ||||
| 6pm | 82°F28°C | 5 mph9 km/h North | Clear | |
| 7pm | 77°F25°C | 4 mph7 km/h North | Clear | |
| 8pm | 73°F23°C | 4 mph6 km/h Northwest | Clear | |
| 9pm | 70°F21°C | 4 mph6 km/h Northwest | Clear | |
| 10pm | 68°F20°C | 3 mph6 km/h Northwest | Clear | |
| 11pm | 66°F19°C | 2 mph4 km/h Northwest | Clear | |
| September 19 | ||||
| 12am | 64°F18°C | 3 mph4 km/h West | Clear | |
| 1am | 62°F16°C | 3 mph4 km/h West | Clear | |
| 2am | 61°F16°C | 3 mph5 km/h West | Clear | |
| 3am | 60°F15°C | 3 mph5 km/h West | Clear | |
| 4am | 59°F15°C | 3 mph5 km/h West | Clear | |
| 5am | 58°F15°C | 3 mph5 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 52°F11°C | 84°F29°C | 3 mph5 km/h from Northwest | Clear | Clear |
| September 19 | 57°F14°C | 80°F26°C | 5 mph8 km/h from North | Mostly Clear | Mostly Clear |
| September 20 | 48°F9°C | 74°F23°C | 4 mph6 km/h from East | Clear | Partly Cloudy |
| September 21 | 55°F13°C | 71°F22°C | 6 mph10 km/h from Southeast | Mostly Cloudy | Mostly Cloudy |
| September 22 | 59°F15°C | 77°F25°C | 6 mph9 km/h from South | Mostly Cloudy | Drizzle |
| September 23 | 61°F16°C | 74°F23°C | 5 mph8 km/h from West | Drizzle | Mostly Cloudy |
| September 24 | 60°F15°C | 75°F24°C | 4 mph7 km/h from North | Drizzle | Partly Cloudy |
Yes
Low of 57°F14°C, High of 80°F27°CWind: 5 mph8 km/h
Precipitation: None