Yes

you do need a jacket based on the weather in Philadelphia, PA 19124, USA 1 second ago

Why? Because it's bitterly cold.
41°F5°C & Clear

Wind is 3 mph5 km/h from the NE, gusting to 9 mph14 km/h
April 26
8am42°F6°C4 mph6 km/h EClear
9am47°F8°C4 mph7 km/h EClear
10am51°F11°C5 mph8 km/h EClear
11am55°F13°C5 mph8 km/h EClear
12pm59°F15°C5 mph9 km/h EClear
1pm61°F16°C5 mph8 km/h SEClear
2pm63°F17°C5 mph7 km/h SEClear
3pm64°F18°C4 mph6 km/h SEMostly Clear
4pm65°F18°C4 mph6 km/h SEMostly Clear
5pm64°F18°C5 mph8 km/h SEClear
6pm63°F17°C6 mph10 km/h SEMostly Clear
7pm60°F16°C9 mph14 km/h SEClear
DateLowHighWindDayNight
April 2638°F3°C65°F18°C5 mph8 km/h from SEClearMostly Clear
April 2740°F5°C64°F18°C8 mph12 km/h from SMostly CloudyMostly Cloudy
April 2848°F9°C79°F26°C6 mph10 km/h from SWMostly CloudyPartly Cloudy
April 2960°F15°C87°F31°C4 mph6 km/h from WPartly CloudyMostly Clear
April 3060°F16°C85°F29°C6 mph10 km/h from SWPartly CloudyPartly Cloudy
May 158°F14°C82°F28°C6 mph9 km/h from WMostly ClearMostly Cloudy
May 254°F12°C83°F28°C7 mph11 km/h from SWPartly CloudyPartly Cloudy

Yes

Low of 40°F5°C, High of 64°F18°C
Wind: 8 mph12 km/h
Precipitation: 7% rain

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