Yes

you do need a jacket based on the weather in Cutchogue (North Fork), New York, United States 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
49°F10°C & Clear

Wind is 8 mph13 km/h from the North, gusting to 14 mph22 km/h
October 18
9am49°F10°C8 mph13 km/h NorthClear
10am49°F10°C8 mph13 km/h NorthClear
11am49°F10°C7 mph12 km/h NorthClear
12pm51°F10°C7 mph11 km/h NorthClear
1pm53°F12°C6 mph10 km/h NorthClear
2pm55°F13°C6 mph9 km/h NorthClear
3pm57°F14°C5 mph8 km/h NorthClear
4pm59°F15°C4 mph6 km/h NorthClear
5pm60°F16°C3 mph5 km/h NorthwestMostly Clear
6pm61°F16°C4 mph6 km/h NorthwestPartly Cloudy
7pm62°F17°C4 mph6 km/h WestPartly Cloudy
8pm62°F17°C3 mph5 km/h WestMostly Cloudy
DateLowHighWindDayNight
October 1849°F10°C62°F17°C5 mph7 km/h from NorthwestMostly ClearMostly Clear
October 1957°F14°C68°F20°C14 mph22 km/h from SouthPartly CloudyRain
October 2056°F13°C66°F19°C22 mph35 km/h from SouthRainRain
October 2153°F11°C63°F17°C14 mph23 km/h from SouthwestMostly ClearPartly Cloudy
October 2252°F11°C64°F18°C13 mph21 km/h from SouthwestPartly CloudyWindy
October 2350°F10°C58°F14°C14 mph22 km/h from WestPartly CloudyClear
October 2448°F9°C57°F14°C12 mph19 km/h from NorthwestMostly ClearPartly Cloudy

Yes

Low of 56°F14°C, High of 68°F20°C
Wind: 14 mph22 km/h
Precipitation: None

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