Yes

you do need a jacket based on the weather in Port Jefferson, NY 11777, USA 1 second ago

Why? Because it's quite chilly.
49°F9°C & Drizzle

Wind is 6 mph9 km/h from the N, gusting to 11 mph18 km/h
March 28
1pm49°F10°C6 mph10 km/h NRain
2pm50°F10°C7 mph11 km/h NWRain
3pm49°F9°C8 mph12 km/h NWRain
4pm49°F9°C8 mph13 km/h NWRain
5pm48°F9°C8 mph13 km/h NWRain
6pm47°F9°C9 mph14 km/h NRain
7pm47°F8°C9 mph14 km/h NWDrizzle
8pm46°F8°C9 mph15 km/h NWRain
9pm45°F7°C10 mph16 km/h NDrizzle
10pm45°F7°C11 mph17 km/h NWDrizzle
11pm44°F7°C13 mph21 km/h NDrizzle
March 29
12am43°F6°C14 mph22 km/h NWDrizzle
DateLowHighWindDayNight
March 2843°F6°C50°F10°C6 mph9 km/h from NWRainRain
March 2938°F3°C53°F11°C16 mph26 km/h from NWWindyWindy
March 3036°F2°C55°F13°C13 mph21 km/h from WPartly CloudyMostly Cloudy
March 3141°F5°C55°F13°C10 mph16 km/h from NWPartly CloudyPartly Cloudy
April 137°F3°C49°F9°C6 mph9 km/h from EMostly CloudyCloudy
April 239°F4°C44°F7°C15 mph24 km/h from ERainRain
April 339°F4°C47°F8°C10 mph17 km/h from NEDrizzleDrizzle

Yes

Low of 38°F4°C, High of 53°F12°C
Wind: 16 mph26 km/h
Precipitation: None

Support This Page