Yes

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

Why? Because it's cool. Pleasantly cool, but cool!
53°F12°C & Cloudy

Wind is 4 mph6 km/h from the Northeast, gusting to 7 mph11 km/h
November 9
3am53°F12°C4 mph6 km/h NortheastCloudy
4am52°F11°C5 mph8 km/h NortheastMostly Cloudy
5am52°F11°C6 mph10 km/h EastMostly Clear
6am53°F11°C8 mph12 km/h EastPartly Cloudy
7am54°F12°C8 mph13 km/h SoutheastPartly Cloudy
8am54°F12°C7 mph11 km/h SoutheastPartly Cloudy
9am54°F12°C7 mph11 km/h SoutheastMostly Clear
10am55°F13°C7 mph11 km/h SoutheastMostly Clear
11am55°F13°C9 mph14 km/h SoutheastPartly Cloudy
12pm56°F13°C10 mph16 km/h SoutheastMostly Cloudy
1pm58°F14°C11 mph17 km/h SoutheastMostly Cloudy
2pm59°F15°C12 mph19 km/h SoutheastMostly Cloudy
DateLowHighWindDayNight
November 852°F11°C64°F18°C3 mph5 km/h from WestMostly ClearPartly Cloudy
November 952°F11°C61°F16°C11 mph18 km/h from SoutheastRainRain
November 1037°F3°C58°F15°C9 mph15 km/h from WestRainMostly Clear
November 1132°F0°C42°F5°C18 mph28 km/h from WestWindyMostly Clear
November 1237°F3°C50°F10°C14 mph22 km/h from WestMostly CloudyMostly Clear
November 1341°F5°C53°F12°C15 mph24 km/h from WestMostly ClearMostly Clear
November 1438°F3°C49°F10°C11 mph17 km/h from NorthwestPartly CloudyMostly Clear

Yes

Low of 52°F11°C, High of 61°F16°C
Wind: 11 mph18 km/h
Precipitation: 72% rain

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