Yes

you do need a jacket based on the weather in Bronx, NY, USA 3 minutes ago

Why? Because it's pretty chilly!
51°F10°C & Cloudy

Wind is 2 mph4 km/h from the Northwest, gusting to 10 mph16 km/h
October 26
1am50°F10°C3 mph5 km/h NorthwestCloudy
2am49°F10°C4 mph6 km/h NorthwestCloudy
3am48°F9°C3 mph5 km/h NorthwestCloudy
4am47°F8°C4 mph6 km/h NorthwestCloudy
5am46°F8°C3 mph5 km/h NorthwestMostly Cloudy
6am44°F7°C4 mph6 km/h NorthMostly Clear
7am43°F6°C4 mph7 km/h NorthMostly Clear
8am44°F7°C4 mph6 km/h NorthMostly Clear
9am44°F6°C4 mph7 km/h NorthMostly Clear
10am43°F6°C4 mph7 km/h NorthMostly Clear
11am43°F6°C4 mph7 km/h NorthMostly Clear
12pm44°F7°C4 mph7 km/h NorthPartly Cloudy
DateLowHighWindDayNight
October 2544°F7°C59°F15°C4 mph6 km/h from NorthwestPartly CloudyPartly Cloudy
October 2643°F6°C59°F15°C5 mph7 km/h from NorthPartly CloudyMostly Clear
October 2741°F5°C55°F13°C6 mph10 km/h from NortheastMostly ClearMostly Clear
October 2842°F5°C56°F14°C11 mph18 km/h from NortheastPartly CloudyPartly Cloudy
October 2944°F7°C57°F14°C10 mph16 km/h from NortheastMostly CloudyRain
October 3047°F9°C60°F15°C15 mph25 km/h from EastRainHeavy Rain
October 3149°F9°C56°F13°C12 mph19 km/h from SouthwestPartly CloudyRain

Yes

Low of 43°F6°C, High of 59°F15°C
Wind: 5 mph7 km/h
Precipitation: None

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