Yes

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

Why? Because it's cool enough your breath is visible, but your nose isn’t red yet and it's windy enough to give you a brand new hairdo!
49°F10°C & Cloudy

Wind is 10 mph16 km/h from the Northeast, gusting to 25 mph40 km/h
October 30
7am49°F9°C11 mph18 km/h NortheastCloudy
8am49°F10°C12 mph19 km/h NortheastCloudy
9am49°F10°C12 mph20 km/h NortheastCloudy
10am50°F10°C13 mph21 km/h EastCloudy
11am51°F11°C14 mph22 km/h EastCloudy
12pm53°F12°C16 mph25 km/h EastWindy
1pm55°F13°C18 mph29 km/h EastDrizzle
2pm56°F13°C18 mph28 km/h EastDrizzle
3pm57°F14°C18 mph29 km/h EastWindy
4pm58°F15°C18 mph30 km/h EastRain
5pm59°F15°C18 mph29 km/h EastDrizzle
6pm59°F15°C18 mph30 km/h EastRain
DateLowHighWindDayNight
October 3049°F9°C61°F16°C17 mph28 km/h from EastHeavy RainRain
October 3147°F8°C59°F15°C16 mph26 km/h from WestWindyMostly Clear
November 142°F6°C56°F13°C12 mph20 km/h from WestMostly ClearMostly Clear
November 238°F4°C55°F13°C5 mph7 km/h from WestPartly CloudyMostly Clear
November 340°F4°C60°F16°C9 mph14 km/h from SouthwestMostly ClearMostly Clear
November 443°F6°C58°F14°C11 mph18 km/h from NorthwestClearMostly Clear
November 541°F5°C57°F14°C7 mph11 km/h from WestPartly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 59°F15°C
Wind: 16 mph26 km/h
Precipitation: None

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