Yes

you do need a jacket based on the weather in 1/23 Investigator Dr, Woodcroft SA 5162, Australia 1 second ago

Why? Because it's so windy, your hat will probably launch into orbit!
66°F19°C & Windy

Wind is 16 mph26 km/h from the West, gusting to 30 mph49 km/h
April 19
4am64°F18°C17 mph27 km/h WestWindy
5am62°F17°C16 mph26 km/h WestWindy
6am62°F16°C16 mph25 km/h WestWindy
7am61°F16°C16 mph25 km/h WestWindy
8am60°F16°C16 mph26 km/h WestWindy
9am60°F15°C16 mph26 km/h WestWindy
10am59°F15°C16 mph26 km/h WestWindy
11am58°F15°C17 mph27 km/h WestWindy
12pm58°F14°C17 mph27 km/h WestWindy
1pm57°F14°C16 mph26 km/h WestWindy
2pm56°F14°C16 mph26 km/h WestWindy
3pm56°F14°C16 mph26 km/h WestWindy
DateLowHighWindDayNight
April 1858°F15°C74°F23°C13 mph21 km/h from NorthwestMostly CloudyWindy
April 1955°F13°C60°F16°C16 mph26 km/h from WestDrizzleMostly Cloudy
April 2054°F12°C62°F17°C12 mph20 km/h from SouthMostly CloudyPartly Cloudy
April 2154°F12°C65°F19°C9 mph14 km/h from SoutheastPartly CloudyMostly Clear
April 2251°F11°C69°F21°C4 mph7 km/h from SouthClearClear
April 2355°F13°C71°F22°C7 mph12 km/h from NorthwestPartly CloudyMostly Cloudy
April 2455°F13°C64°F18°C12 mph19 km/h from SouthMostly CloudyPartly Cloudy

Yes

Low of 55°F13°C, High of 61°F16°C
Wind: 16 mph26 km/h
Precipitation: 45% rain

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