Yes

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

Why? Because your nose hairs will turn into tiny icicles!
15°F-10°C & Cloudy

Wind is 2 mph4 km/h from the West, gusting to 6 mph9 km/h
January 22
10pm14°F-10°C3 mph4 km/h NorthwestMostly Clear
11pm14°F-10°C3 mph5 km/h WestMostly Clear
January 23
12am13°F-10°C3 mph5 km/h WestPartly Cloudy
1am14°F-10°C3 mph6 km/h NorthwestMostly Cloudy
2am13°F-10°C4 mph6 km/h WestMostly Cloudy
3am14°F-10°C4 mph6 km/h NorthwestMostly Cloudy
4am14°F-10°C3 mph6 km/h NorthwestCloudy
5am15°F-9°C3 mph5 km/h NorthwestCloudy
6am16°F-9°C3 mph5 km/h NorthwestCloudy
7am16°F-9°C3 mph4 km/h NorthwestCloudy
8am17°F-8°C2 mph4 km/h NorthwestMostly Cloudy
9am20°F-7°C2 mph4 km/h WestMostly Cloudy
DateLowHighWindDayNight
January 2210°F-12°C20°F-7°C2 mph3 km/h from NorthMostly ClearMostly Cloudy
January 2313°F-10°C30°F-1°C4 mph7 km/h from WestPartly CloudyClear
January 2419°F-7°C30°F-1°C8 mph12 km/h from NorthwestMostly ClearMostly Clear
January 2517°F-9°C29°F-2°C8 mph12 km/h from WestMostly ClearMostly Cloudy
January 2627°F-3°C37°F3°C11 mph17 km/h from WestMostly CloudyPartly Cloudy
January 2725°F-4°C37°F3°C12 mph20 km/h from SouthwestMostly ClearMostly Clear
January 2821°F-6°C41°F5°C14 mph23 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 13°F-11°C, High of 30°F-1°C
Wind: 4 mph7 km/h
Precipitation: None

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