No
you don't need a jacket based on the weather in King of Prussia, PA, USA 1 second ago
66°F19°C & Mostly Clear
Wind is 3 mph5 km/h from the Southeast, gusting to 9 mph15 km/h
| September 13 | ||||
| 12am | 64°F18°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 1am | 63°F17°C | 3 mph5 km/h East | Mostly Clear | |
| 2am | 62°F17°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 3am | 61°F16°C | 3 mph5 km/h Northeast | Mostly Clear | |
| 4am | 60°F16°C | 2 mph3 km/h East | Mostly Clear | |
| 5am | 59°F15°C | 2 mph3 km/h East | Mostly Clear | |
| 6am | 59°F15°C | 2 mph3 km/h Southeast | Mostly Clear | |
| 7am | 60°F16°C | 2 mph4 km/h Southeast | Mostly Clear | |
| 8am | 63°F17°C | 2 mph4 km/h South | Partly Cloudy | |
| 9am | 67°F19°C | 3 mph4 km/h South | Partly Cloudy | |
| 10am | 71°F22°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 11am | 75°F24°C | 3 mph5 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 12 | 54°F12°C | 80°F27°C | 1 mph2 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 13 | 59°F15°C | 81°F27°C | 3 mph5 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 14 | 61°F16°C | 83°F28°C | 3 mph5 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 15 | 62°F16°C | 82°F28°C | 4 mph7 km/h from East | Partly Cloudy | Partly Cloudy |
| September 16 | 62°F16°C | 80°F26°C | 4 mph6 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 17 | 60°F16°C | 76°F24°C | 5 mph8 km/h from East | Drizzle | Cloudy |
| September 18 | 62°F17°C | 75°F24°C | 4 mph6 km/h from North | Drizzle | Partly Cloudy |
No
Low of 59°F15°C, High of 82°F28°CWind: 3 mph5 km/h
Precipitation: None