Yes

you do need a jacket based on the weather in Brooklyn, NY 11220, USA 15 seconds ago

Why? Because the drizzle is not enough rain to call it "raining," but enough to make you a little soggy and it's cool. Pleasantly cool, but cool!
50°F10°C & Drizzle

Wind is 6 mph9 km/h from the North, gusting to 12 mph20 km/h
May 22
11pm50°F10°C5 mph9 km/h NorthCloudy
May 23
12am49°F9°C5 mph7 km/h NorthCloudy
1am49°F9°C4 mph7 km/h NorthCloudy
2am48°F9°C4 mph6 km/h NortheastDrizzle
3am48°F9°C4 mph6 km/h NortheastCloudy
4am48°F9°C4 mph6 km/h NortheastCloudy
5am48°F9°C3 mph5 km/h NorthCloudy
6am48°F9°C3 mph4 km/h NortheastCloudy
7am48°F9°C2 mph3 km/h NorthCloudy
8am49°F10°C3 mph4 km/h WestCloudy
9am51°F10°C4 mph6 km/h WestCloudy
10am52°F11°C5 mph8 km/h WestCloudy
DateLowHighWindDayNight
May 2248°F9°C52°F11°C6 mph9 km/h from NortheastRainDrizzle
May 2348°F9°C63°F17°C7 mph12 km/h from WestMostly CloudyPartly Cloudy
May 2449°F10°C62°F17°C13 mph20 km/h from WestMostly CloudyMostly Clear
May 2550°F10°C66°F19°C11 mph18 km/h from NorthwestPartly CloudyClear
May 2650°F10°C71°F21°C5 mph8 km/h from NorthMostly ClearPartly Cloudy
May 2754°F12°C72°F22°C6 mph10 km/h from SouthMostly CloudyCloudy
May 2857°F14°C65°F18°C10 mph16 km/h from EastRainRain

Yes

Low of 48°F9°C, High of 63°F17°C
Wind: 7 mph12 km/h
Precipitation: 26% rain

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