Yes

you do need a jacket based on the weather in Zucchelli Station, Antarctica 1 second ago

Why? Because just don't even bother going out. it's waaayyyy too cold.
-11°F-24°C & Mostly Cloudy

Wind is 3 mph5 km/h from the N, gusting to 5 mph8 km/h
September 19
5pm-10°F-23°C3 mph6 km/h NMostly Cloudy
6pm-9°F-23°C3 mph6 km/h NWMostly Cloudy
7pm-8°F-22°C4 mph6 km/h NWMostly Cloudy
8pm-8°F-22°C4 mph6 km/h WHaze
9pm-7°F-22°C4 mph7 km/h WHaze
10pm-6°F-21°C4 mph7 km/h WHaze
11pm-6°F-21°C4 mph7 km/h WHaze
September 20
12am-7°F-21°C4 mph7 km/h WHaze
1am-7°F-22°C5 mph8 km/h WHaze
2am-8°F-22°C5 mph8 km/h WHaze
3am-8°F-22°C6 mph10 km/h WHaze
4am-9°F-23°C7 mph11 km/h WHaze
DateLowHighWindDayNight
September 19-15°F-26°C-6°F-21°C4 mph7 km/h from WMostly CloudyMostly Cloudy
September 20-13°F-25°C-6°F-21°C6 mph9 km/h from NWPartly CloudyMostly Cloudy
September 21-10°F-24°C-5°F-20°C4 mph6 km/h from WCloudyMostly Cloudy
September 22-13°F-25°C-4°F-20°C5 mph8 km/h from NWMostly ClearMostly Clear
September 23-14°F-26°C-6°F-21°C6 mph10 km/h from NWMostly ClearPartly Cloudy
September 24-14°F-26°C-10°F-23°C8 mph13 km/h from SWPartly CloudyMostly Cloudy
September 25-16°F-27°C-10°F-23°C7 mph12 km/h from WMostly CloudyPartly Cloudy

Yes

Low of -13°F-25°C, High of -7°F-22°C
Wind: 6 mph9 km/h
Precipitation: None

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