Yes

you do need a jacket based on the weather in Alice Springs NT 0870, Australia 1 second ago

Why? Because it's not very warm out!
51°F11°C & Clear

Wind is 9 mph15 km/h from the Southeast, gusting to 18 mph29 km/h
September 11
7pm52°F11°C10 mph16 km/h SoutheastClear
8pm57°F14°C14 mph22 km/h SoutheastClear
9pm60°F16°C17 mph27 km/h SoutheastWindy
10pm63°F17°C17 mph27 km/h SoutheastWindy
11pm65°F18°C16 mph26 km/h SoutheastWindy
September 12
12am66°F19°C16 mph26 km/h SoutheastWindy
1am67°F20°C15 mph25 km/h SoutheastWindy
2am68°F20°C15 mph24 km/h SoutheastWindy
3am67°F19°C15 mph24 km/h SoutheastClear
4am65°F18°C14 mph23 km/h SoutheastClear
5am62°F16°C12 mph19 km/h SoutheastClear
6am59°F15°C9 mph15 km/h SoutheastClear
DateLowHighWindDayNight
September 1143°F6°C68°F20°C14 mph22 km/h from SoutheastClearClear
September 1243°F6°C71°F22°C12 mph20 km/h from EastClearClear
September 1345°F7°C80°F27°C7 mph11 km/h from NortheastClearClear
September 1453°F12°C85°F29°C10 mph16 km/h from NorthwestClearClear
September 1555°F13°C81°F27°C10 mph16 km/h from SoutheastClearMostly Clear
September 1653°F12°C82°F28°C12 mph20 km/h from EastClearClear
September 1760°F15°C87°F30°C9 mph15 km/h from NorthPartly CloudyPartly Cloudy

Yes

Low of 44°F7°C, High of 72°F22°C
Wind: 12 mph20 km/h
Precipitation: None

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