Yes

you do need a jacket based on the weather in Duxbury, MA, USA 1 second ago

Why? Because it's bitterly cold.
44°F7°C & Cloudy

Wind is 12 mph19 km/h from the E, gusting to 21 mph33 km/h
April 18
6am44°F7°C13 mph20 km/h ECloudy
7am43°F6°C13 mph20 km/h ECloudy
8am44°F7°C13 mph21 km/h ECloudy
9am44°F7°C13 mph21 km/h ECloudy
10am46°F8°C13 mph20 km/h ECloudy
11am47°F8°C12 mph19 km/h ECloudy
12pm48°F9°C12 mph19 km/h ECloudy
1pm49°F9°C11 mph18 km/h ECloudy
2pm49°F9°C11 mph17 km/h ECloudy
3pm49°F9°C10 mph17 km/h ECloudy
4pm48°F9°C10 mph17 km/h ECloudy
5pm47°F8°C10 mph17 km/h NECloudy
DateLowHighWindDayNight
April 1843°F6°C49°F9°C11 mph18 km/h from ECloudyMostly Cloudy
April 1940°F5°C55°F13°C10 mph16 km/h from SEPartly CloudyCloudy
April 2044°F7°C60°F16°C6 mph10 km/h from SWRainMostly Clear
April 2139°F4°C57°F14°C7 mph11 km/h from WPartly CloudyMostly Cloudy
April 2240°F5°C55°F13°C7 mph12 km/h from NEPartly CloudyMostly Clear
April 2340°F5°C60°F16°C8 mph13 km/h from SPartly CloudyCloudy
April 2443°F6°C59°F15°C12 mph19 km/h from WDrizzleWindy

Yes

Low of 40°F5°C, High of 55°F13°C
Wind: 10 mph16 km/h
Precipitation: None

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