No
you don't need a jacket based on the weather in Philadelphia, PA, USA 3 minutes ago
67°F20°C & Mostly Clear
Wind is 2 mph4 km/h from the Northwest, gusting to 4 mph6 km/h
| September 11 | ||||
| 12am | 66°F19°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 1am | 65°F18°C | 3 mph4 km/h Northwest | Mostly Clear | |
| 2am | 64°F18°C | 3 mph4 km/h Northwest | Mostly Clear | |
| 3am | 63°F17°C | 3 mph5 km/h Northwest | Mostly Cloudy | |
| 4am | 62°F17°C | 4 mph6 km/h North | Mostly Clear | |
| 5am | 61°F16°C | 4 mph6 km/h Northwest | Clear | |
| 6am | 61°F16°C | 4 mph6 km/h Northwest | Clear | |
| 7am | 61°F16°C | 4 mph6 km/h North | Mostly Clear | |
| 8am | 63°F17°C | 4 mph6 km/h North | Mostly Clear | |
| 9am | 67°F19°C | 4 mph6 km/h North | Clear | |
| 10am | 71°F21°C | 4 mph7 km/h North | Mostly Clear | |
| 11am | 74°F23°C | 5 mph7 km/h North | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 64°F18°C | 71°F22°C | 5 mph8 km/h from Northeast | Cloudy | Partly Cloudy |
| September 11 | 61°F16°C | 80°F27°C | 5 mph8 km/h from North | Mostly Clear | Mostly Clear |
| September 12 | 61°F16°C | 79°F26°C | 5 mph8 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| September 13 | 61°F16°C | 80°F27°C | 3 mph5 km/h from Southwest | Partly Cloudy | Mostly Clear |
| September 14 | 62°F17°C | 81°F27°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| September 15 | 62°F17°C | 75°F24°C | 7 mph11 km/h from Northeast | Drizzle | Partly Cloudy |
| September 16 | 60°F16°C | 74°F23°C | 6 mph10 km/h from Northeast | Partly Cloudy | Partly Cloudy |
No
Low of 61°F16°C, High of 80°F27°CWind: 5 mph8 km/h
Precipitation: None