Yes

you do need a jacket based on the weather in Hawthorne, NY 10532, USA 1 second ago

Why? Because it's quite chilly.
47°F8°C & Cloudy

Wind is 6 mph10 km/h from the NE, gusting to 14 mph22 km/h
April 18
7pm47°F8°C6 mph10 km/h NECloudy
8pm46°F8°C6 mph10 km/h NECloudy
9pm46°F8°C5 mph9 km/h EMostly Cloudy
10pm45°F7°C5 mph8 km/h NEMostly Cloudy
11pm45°F7°C5 mph8 km/h NECloudy
April 19
12am44°F7°C5 mph8 km/h EMostly Cloudy
1am44°F6°C5 mph8 km/h EMostly Cloudy
2am43°F6°C4 mph7 km/h EMostly Cloudy
3am42°F5°C4 mph7 km/h EPartly Cloudy
4am41°F5°C4 mph6 km/h EPartly Cloudy
5am41°F5°C4 mph6 km/h NEPartly Cloudy
6am40°F5°C3 mph6 km/h NEMostly Cloudy
DateLowHighWindDayNight
April 1843°F6°C47°F8°C4 mph7 km/h from EDrizzleMostly Cloudy
April 1940°F5°C59°F15°C8 mph13 km/h from SEMostly CloudyDrizzle
April 2044°F7°C64°F18°C7 mph11 km/h from WDrizzleMostly Clear
April 2138°F3°C57°F14°C7 mph11 km/h from WMostly CloudyPartly Cloudy
April 2238°F4°C59°F15°C7 mph11 km/h from NWClearClear
April 2337°F3°C62°F17°C8 mph12 km/h from SPartly CloudyCloudy
April 2444°F6°C61°F16°C8 mph13 km/h from WDrizzleClear

Yes

Low of 40°F5°C, High of 59°F15°C
Wind: 8 mph13 km/h
Precipitation: None

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