Yes

you do need a jacket based on the weather in Rockville Centre, NY, USA 1 second ago

Why? Because the wind could blow a wig clean off your head!
71°F22°C & Cloudy

Wind is 12 mph20 km/h from the East, gusting to 22 mph35 km/h
June 8
5pm69°F21°C13 mph20 km/h EastDrizzle
6pm67°F20°C12 mph20 km/h EastCloudy
7pm65°F19°C11 mph18 km/h EastCloudy
8pm64°F18°C11 mph17 km/h EastCloudy
9pm63°F17°C11 mph17 km/h EastCloudy
10pm63°F17°C11 mph18 km/h EastCloudy
11pm62°F17°C11 mph18 km/h EastCloudy
June 9
12am62°F16°C11 mph18 km/h EastCloudy
1am61°F16°C11 mph17 km/h EastCloudy
2am61°F16°C11 mph18 km/h EastCloudy
3am61°F16°C11 mph18 km/h EastCloudy
4am60°F16°C11 mph17 km/h EastCloudy
DateLowHighWindDayNight
June 862°F16°C76°F24°C9 mph14 km/h from EastDrizzleDrizzle
June 960°F16°C67°F19°C9 mph15 km/h from EastDrizzleRain
June 1063°F17°C74°F23°C6 mph10 km/h from SouthRainMostly Clear
June 1163°F17°C78°F25°C8 mph13 km/h from SouthwestClearClear
June 1267°F19°C82°F28°C9 mph14 km/h from SouthwestMostly ClearPartly Cloudy
June 1366°F19°C76°F24°C7 mph12 km/h from NortheastPartly CloudyMostly Cloudy
June 1460°F16°C69°F20°C10 mph16 km/h from EastDrizzleDrizzle

No

Low of 60°F16°C, High of 67°F20°C
Wind: 9 mph15 km/h
Precipitation: 55% rain

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