Yes

you do need a jacket based on the weather in Mamaroneck, NY 10543, USA 1 second ago

Why? Because it's FREEZING out there and it's really really huffing out there!
25°F-4°C & Windy

Wind is 19 mph30 km/h from the Northwest, gusting to 34 mph54 km/h
January 8
3pm25°F-4°C18 mph30 km/h NorthwestWindy
4pm23°F-5°C18 mph29 km/h NorthwestWindy
5pm22°F-6°C16 mph26 km/h NorthwestWindy
6pm21°F-6°C16 mph26 km/h NorthwestWindy
7pm20°F-7°C15 mph25 km/h NorthwestWindy
8pm19°F-7°C16 mph26 km/h NorthwestWindy
9pm19°F-7°C16 mph26 km/h NorthwestWindy
10pm19°F-7°C16 mph26 km/h NorthwestWindy
11pm19°F-7°C16 mph26 km/h NorthwestWindy
January 9
12am19°F-7°C17 mph27 km/h NorthwestWindy
1am19°F-7°C16 mph26 km/h NorthwestWindy
2am20°F-7°C17 mph27 km/h NorthwestWindy
DateLowHighWindDayNight
January 819°F-7°C28°F-2°C15 mph23 km/h from NorthwestMostly ClearWindy
January 919°F-7°C32°F0°C19 mph31 km/h from NorthwestWindyWindy
January 1025°F-4°C37°F3°C9 mph14 km/h from NorthwestPartly CloudyCloudy
January 1127°F-3°C35°F2°C7 mph11 km/h from NorthwestMostly CloudyMostly Clear
January 1227°F-3°C37°F3°C7 mph11 km/h from NorthwestMostly ClearPartly Cloudy
January 1324°F-4°C37°F3°C5 mph8 km/h from WestPartly CloudyPartly Cloudy
January 1426°F-3°C35°F2°C10 mph15 km/h from WestMostly CloudyPartly Cloudy

Yes

Low of 19°F-7°C, High of 32°F0°C
Wind: 19 mph31 km/h
Precipitation: None

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