Yes

you do need a jacket based on the weather in Greenland 1 second ago

Why? Because it's colder than a polar bear's pyjamas!
17°F-9°C & Mostly Cloudy

Wind is 11 mph17 km/h from the East, gusting to 17 mph27 km/h
June 19
10pm16°F-9°C12 mph19 km/h EastMostly Cloudy
11pm15°F-10°C12 mph19 km/h EastPartly Cloudy
June 20
12am13°F-10°C12 mph20 km/h SoutheastMostly Clear
1am13°F-11°C13 mph20 km/h SoutheastPartly Cloudy
2am13°F-11°C13 mph20 km/h SoutheastPartly Cloudy
3am13°F-10°C12 mph20 km/h SoutheastMostly Clear
4am14°F-10°C12 mph20 km/h SoutheastMostly Clear
5am15°F-10°C12 mph20 km/h SoutheastMostly Clear
6am16°F-9°C12 mph19 km/h SoutheastPartly Cloudy
7am18°F-8°C12 mph19 km/h SoutheastPartly Cloudy
8am19°F-7°C11 mph18 km/h SoutheastPartly Cloudy
9am21°F-6°C11 mph17 km/h SoutheastPartly Cloudy
DateLowHighWindDayNight
June 1913°F-11°C24°F-4°C10 mph17 km/h from SoutheastPartly CloudyPartly Cloudy
June 2010°F-12°C22°F-6°C10 mph16 km/h from SoutheastPartly CloudyPartly Cloudy
June 2110°F-12°C20°F-6°C8 mph13 km/h from SoutheastMostly CloudyMostly Cloudy
June 229°F-13°C20°F-7°C10 mph16 km/h from SoutheastPartly CloudyPartly Cloudy
June 2311°F-12°C22°F-6°C9 mph15 km/h from SoutheastPartly CloudyPartly Cloudy
June 249°F-13°C21°F-6°C8 mph13 km/h from SoutheastPartly CloudyMostly Clear
June 259°F-13°C18°F-8°C11 mph17 km/h from SoutheastPartly CloudyPartly Cloudy

Yes

Low of 10°F-12°C, High of 22°F-6°C
Wind: 10 mph16 km/h
Precipitation: None

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