Yes

you do need a jacket based on the weather in Philadelphia, PA 19147, USA 15 seconds ago

Why? Because the air feels like the cozy middle ground between summer and winter and it's on the windy side!
54°F12°C & Cloudy

Wind is 8 mph13 km/h from the Southeast, gusting to 24 mph39 km/h
April 5
11am56°F13°C8 mph14 km/h SoutheastRain
12pm57°F14°C8 mph13 km/h SoutheastCloudy
1pm58°F15°C8 mph12 km/h EastCloudy
2pm59°F15°C8 mph13 km/h EastCloudy
3pm59°F15°C7 mph12 km/h EastCloudy
4pm60°F15°C8 mph13 km/h SoutheastCloudy
5pm59°F15°C6 mph10 km/h SoutheastCloudy
6pm60°F15°C5 mph8 km/h EastCloudy
7pm59°F15°C6 mph9 km/h EastMostly Cloudy
8pm57°F14°C6 mph9 km/h EastCloudy
9pm55°F13°C6 mph9 km/h NortheastThunderstorms
10pm54°F12°C6 mph9 km/h NortheastDrizzle
DateLowHighWindDayNight
April 553°F12°C62°F16°C7 mph11 km/h from EastRainThunderstorms
April 650°F10°C69°F21°C8 mph13 km/h from NorthwestRainRain
April 741°F5°C50°F10°C6 mph9 km/h from NorthDrizzleMostly Cloudy
April 833°F0°C44°F6°C15 mph24 km/h from NorthwestPartly CloudyMostly Clear
April 930°F-1°C48°F9°C8 mph13 km/h from NorthwestClearMostly Clear
April 1035°F1°C56°F13°C9 mph14 km/h from SouthMostly CloudyDrizzle
April 1141°F5°C56°F13°C8 mph14 km/h from SoutheastRainRain

Yes

Low of 50°F10°C, High of 69°F21°C
Wind: 8 mph13 km/h
Precipitation: 58% rain

Support This Page