Yes

you do need a jacket based on the weather in Campbelltown NSW 2560, Australia 1 second ago

Why? Because it's pretty chilly!
51°F10°C & Partly Cloudy

Wind is 4 mph6 km/h from the Southwest, gusting to 7 mph12 km/h
August 4
1pm50°F10°C4 mph6 km/h SouthwestPartly Cloudy
2pm50°F10°C4 mph6 km/h SouthwestPartly Cloudy
3pm49°F10°C4 mph6 km/h SouthwestMostly Cloudy
4pm49°F9°C4 mph6 km/h SouthwestPartly Cloudy
5pm48°F9°C3 mph5 km/h WestHaze
6pm50°F10°C3 mph4 km/h WestPartly Cloudy
7pm53°F12°C3 mph4 km/h WestMostly Clear
8pm57°F14°C3 mph4 km/h NorthwestMostly Clear
9pm61°F16°C3 mph4 km/h NorthwestClear
10pm64°F18°C3 mph5 km/h NorthClear
11pm67°F19°C3 mph6 km/h NorthwestClear
August 5
12am67°F20°C4 mph6 km/h NorthMostly Clear
DateLowHighWindDayNight
August 448°F9°C67°F20°C3 mph5 km/h from NorthwestMostly ClearClear
August 546°F8°C65°F18°C6 mph10 km/h from SouthwestClearMostly Clear
August 646°F8°C59°F15°C8 mph12 km/h from SouthDrizzlePartly Cloudy
August 744°F7°C60°F15°C7 mph11 km/h from SouthDrizzleDrizzle
August 848°F9°C60°F15°C7 mph12 km/h from SouthDrizzleDrizzle
August 948°F9°C61°F16°C6 mph10 km/h from SouthDrizzleDrizzle
August 1046°F8°C61°F16°C5 mph8 km/h from SoutheastMostly ClearMostly Clear

Yes

Low of 46°F8°C, High of 64°F18°C
Wind: 6 mph10 km/h
Precipitation: None

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