Yes
you do need a jacket based on the weather in Philadelphia, PA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
57°F14°C & Cloudy
Wind is 4 mph7 km/h from the W, gusting to 11 mph17 km/h
| April 20 | ||||
| 12pm | 60°F16°C | 5 mph9 km/h W | Mostly Cloudy | |
| 1pm | 63°F17°C | 8 mph12 km/h W | Partly Cloudy | |
| 2pm | 66°F19°C | 10 mph15 km/h W | Mostly Clear | |
| 3pm | 67°F20°C | 11 mph18 km/h W | Mostly Clear | |
| 4pm | 68°F20°C | 13 mph21 km/h W | Mostly Clear | |
| 5pm | 67°F20°C | 14 mph22 km/h W | Mostly Clear | |
| 6pm | 66°F19°C | 13 mph20 km/h W | Partly Cloudy | |
| 7pm | 63°F17°C | 11 mph18 km/h NW | Mostly Clear | |
| 8pm | 60°F15°C | 11 mph18 km/h NW | Clear | |
| 9pm | 56°F14°C | 11 mph17 km/h NW | Clear | |
| 10pm | 54°F12°C | 11 mph18 km/h NW | Mostly Clear | |
| 11pm | 51°F11°C | 10 mph17 km/h NW | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 20 | 49°F9°C | 68°F20°C | 8 mph13 km/h from W | Drizzle | Partly Cloudy |
| April 21 | 40°F5°C | 54°F12°C | 7 mph11 km/h from W | Cloudy | Partly Cloudy |
| April 22 | 40°F4°C | 61°F16°C | 8 mph12 km/h from NW | Clear | Clear |
| April 23 | 41°F5°C | 65°F18°C | 9 mph14 km/h from S | Mostly Clear | Mostly Cloudy |
| April 24 | 49°F10°C | 67°F20°C | 11 mph18 km/h from W | Drizzle | Mostly Clear |
| April 25 | 44°F7°C | 65°F18°C | 8 mph12 km/h from NW | Mostly Clear | Mostly Clear |
| April 26 | 44°F7°C | 65°F18°C | 6 mph10 km/h from E | Mostly Clear | Mostly Cloudy |
Yes
Low of 40°F5°C, High of 54°F12°CWind: 7 mph11 km/h
Precipitation: None