Yes

you do need a jacket based on the weather in Stamford, CT, USA 1 second ago

Why? Because it's colder than a polar bear's pyjamas!
30°F-1°C & Cloudy

Wind is 3 mph5 km/h from the Northwest, gusting to 7 mph11 km/h
January 10
10pm30°F-1°C3 mph5 km/h NorthwestCloudy
11pm30°F-1°C3 mph5 km/h NorthwestCloudy
January 11
12am30°F-1°C3 mph5 km/h NorthCloudy
1am30°F-1°C1 mph2 km/h NorthwestCloudy
2am30°F-1°C3 mph5 km/h SouthwestCloudy
3am30°F-1°C3 mph5 km/h SouthwestCloudy
4am30°F-1°C5 mph8 km/h SouthwestCloudy
5am28°F-2°C5 mph8 km/h WestCloudy
6am27°F-3°C4 mph6 km/h WestSnow
7am27°F-3°C3 mph5 km/h WestHaze
8am27°F-3°C3 mph5 km/h WestCloudy
9am28°F-2°C3 mph5 km/h WestCloudy
DateLowHighWindDayNight
January 1026°F-4°C41°F5°C5 mph7 km/h from NorthwestMostly ClearSnow
January 1126°F-3°C32°F0°C7 mph11 km/h from NorthwestMostly CloudyClear
January 1225°F-4°C38°F3°C5 mph8 km/h from NorthwestClearPartly Cloudy
January 1326°F-3°C38°F3°C7 mph11 km/h from SouthwestMostly ClearMostly Clear
January 1420°F-7°C30°F-1°C13 mph21 km/h from WestMostly ClearPartly Cloudy
January 1519°F-7°C28°F-2°C13 mph22 km/h from NorthwestPartly CloudyMostly Clear
January 1619°F-7°C29°F-2°C9 mph15 km/h from WestPartly CloudyMostly Clear

Yes

Low of 27°F-3°C, High of 32°F0°C
Wind: 7 mph11 km/h
Precipitation: None

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