No
you don't need a jacket based on the weather in Pennsylvania, USA 14 minutes ago
62°F17°C & Clear
Wind is 2 mph3 km/h from the West, gusting to 4 mph7 km/h
| September 11 | ||||
| 10am | 67°F19°C | 2 mph3 km/h Northwest | Clear | |
| 11am | 71°F22°C | 3 mph4 km/h North | Clear | |
| 12pm | 74°F24°C | 5 mph8 km/h North | Clear | |
| 1pm | 76°F25°C | 6 mph9 km/h North | Clear | |
| 2pm | 77°F25°C | 6 mph9 km/h North | Clear | |
| 3pm | 78°F26°C | 6 mph9 km/h North | Mostly Clear | |
| 4pm | 77°F25°C | 5 mph8 km/h North | Mostly Clear | |
| 5pm | 77°F25°C | 5 mph8 km/h North | Mostly Clear | |
| 6pm | 75°F24°C | 4 mph7 km/h Northeast | Mostly Clear | |
| 7pm | 71°F21°C | 3 mph5 km/h Northeast | Mostly Clear | |
| 8pm | 66°F19°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 9pm | 64°F18°C | 4 mph6 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 50°F10°C | 78°F26°C | 4 mph6 km/h from North | Clear | Clear |
| September 12 | 51°F11°C | 76°F25°C | 2 mph4 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 13 | 53°F12°C | 79°F26°C | 2 mph4 km/h from West | Mostly Clear | Partly Cloudy |
| September 14 | 55°F13°C | 80°F27°C | 3 mph5 km/h from North | Mostly Clear | Mostly Clear |
| September 15 | 56°F13°C | 80°F27°C | 2 mph4 km/h from East | Mostly Clear | Mostly Clear |
| September 16 | 57°F14°C | 80°F27°C | 3 mph5 km/h from Southeast | Partly Cloudy | Mostly Cloudy |
| September 17 | 57°F14°C | 78°F25°C | 3 mph5 km/h from Southeast | Mostly Cloudy | Partly Cloudy |
Yes
Low of 51°F11°C, High of 76°F25°CWind: 2 mph4 km/h
Precipitation: None