Yes

you do need a jacket based on the weather in Long Island, New York, USA 1 second ago

Why? Because the wind could blow a wig clean off your head!
61°F16°C & Cloudy

Wind is 11 mph17 km/h from the Southwest, gusting to 24 mph38 km/h
April 3
7pm61°F16°C11 mph17 km/h SouthwestCloudy
8pm60°F15°C11 mph17 km/h SouthwestCloudy
9pm60°F15°C10 mph16 km/h SouthwestCloudy
10pm59°F15°C9 mph15 km/h SouthwestCloudy
11pm60°F15°C9 mph15 km/h SouthwestHaze
April 4
12am61°F16°C9 mph15 km/h SouthwestCloudy
1am62°F17°C8 mph12 km/h SouthwestCloudy
2am62°F17°C7 mph12 km/h SouthwestCloudy
3am62°F16°C7 mph11 km/h WestRain
4am61°F16°C6 mph10 km/h WestRain
5am60°F15°C7 mph11 km/h NorthwestDrizzle
6am58°F14°C8 mph12 km/h NorthwestDrizzle
DateLowHighWindDayNight
April 344°F7°C62°F17°C8 mph12 km/h from SouthwestThunderstormsRain
April 452°F11°C63°F17°C5 mph9 km/h from NorthwestDrizzleMostly Cloudy
April 545°F7°C52°F11°C12 mph19 km/h from EastDrizzleDrizzle
April 646°F8°C59°F15°C7 mph12 km/h from WestDrizzleRain
April 742°F5°C47°F8°C7 mph11 km/h from NortheastDrizzleMostly Cloudy
April 833°F1°C47°F8°C14 mph23 km/h from WestMostly ClearMostly Clear
April 929°F-2°C46°F8°C9 mph14 km/h from WestMostly ClearPartly Cloudy

Yes

Low of 52°F11°C, High of 64°F18°C
Wind: 5 mph9 km/h
Precipitation: 39% rain

Support This Page