Yes

you do need a jacket based on the weather in New York (Tribeca), New York, United States 2 minutes ago

Why? Because it's cool. Pleasantly cool, but cool and the wind is offering free, unsolicited face massages!
51°F10°C & Clear

Wind is 12 mph20 km/h from the North, gusting to 24 mph38 km/h
October 16
3pm51°F11°C13 mph21 km/h NorthClear
4pm54°F12°C13 mph22 km/h NorthClear
5pm56°F13°C14 mph22 km/h NorthClear
6pm58°F14°C14 mph23 km/h NorthClear
7pm59°F15°C15 mph24 km/h NorthClear
8pm59°F15°C15 mph24 km/h NorthClear
9pm58°F14°C14 mph22 km/h NorthClear
10pm56°F13°C12 mph19 km/h NorthClear
11pm54°F12°C10 mph16 km/h NorthClear
October 17
12am52°F11°C10 mph16 km/h NorthClear
1am50°F10°C10 mph16 km/h NorthClear
2am49°F9°C10 mph16 km/h NorthClear
DateLowHighWindDayNight
October 1646°F8°C59°F15°C12 mph19 km/h from NorthClearClear
October 1744°F7°C61°F16°C8 mph13 km/h from NorthClearMostly Clear
October 1845°F7°C63°F17°C3 mph5 km/h from SouthwestPartly CloudyMostly Clear
October 1954°F12°C69°F21°C12 mph19 km/h from SouthMostly CloudyRain
October 2056°F13°C64°F18°C10 mph16 km/h from WestRainMostly Clear
October 2152°F11°C66°F19°C7 mph12 km/h from SouthwestMostly ClearMostly Cloudy
October 2251°F11°C60°F16°C10 mph16 km/h from WestPartly CloudyMostly Clear

Yes

Low of 44°F7°C, High of 61°F16°C
Wind: 8 mph13 km/h
Precipitation: None

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