Yes

you do need a jacket based on the weather in Mt Holly, NJ, USA 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
34°F1°C & Clear

Wind is 5 mph8 km/h from the Northeast, gusting to 12 mph19 km/h
April 2
5am34°F1°C5 mph8 km/h NortheastClear
6am34°F1°C5 mph8 km/h NortheastClear
7am34°F1°C6 mph10 km/h NortheastClear
8am36°F2°C8 mph12 km/h NortheastMostly Clear
9am39°F4°C10 mph16 km/h NortheastMostly Cloudy
10am44°F6°C10 mph17 km/h EastPartly Cloudy
11am47°F8°C11 mph17 km/h EastMostly Cloudy
12pm49°F10°C11 mph19 km/h EastMostly Cloudy
1pm52°F11°C12 mph19 km/h SoutheastMostly Cloudy
2pm53°F12°C12 mph20 km/h SoutheastMostly Cloudy
3pm53°F12°C12 mph20 km/h SoutheastCloudy
4pm53°F12°C12 mph19 km/h SoutheastMostly Cloudy
DateLowHighWindDayNight
April 233°F1°C53°F12°C11 mph18 km/h from EastMostly CloudyCloudy
April 346°F8°C76°F25°C15 mph24 km/h from SouthwestCloudyThunderstorms
April 457°F14°C68°F20°C6 mph9 km/h from NorthRainRain
April 548°F9°C57°F14°C10 mph16 km/h from EastDrizzleCloudy
April 648°F9°C77°F25°C12 mph19 km/h from SouthwestCloudyRain
April 746°F8°C60°F15°C8 mph13 km/h from NorthwestMostly CloudyMostly Cloudy
April 838°F3°C55°F13°C14 mph22 km/h from NorthwestMostly CloudyMostly Clear

Yes

Low of 46°F8°C, High of 76°F25°C
Wind: 15 mph24 km/h
Precipitation: None

Support This Page