Yes

you do need a jacket based on the weather in Harkaway VIC 3806, Australia 1 second ago

Why? Because it's so windy, even the squirrels are holding onto branches for dear life!
65°F18°C & Cloudy

Wind is 11 mph17 km/h from the West, gusting to 24 mph38 km/h
December 26
8pm66°F19°C11 mph17 km/h WestMostly Cloudy
9pm69°F20°C11 mph18 km/h WestMostly Cloudy
10pm70°F21°C11 mph17 km/h SouthwestMostly Cloudy
11pm69°F21°C10 mph15 km/h SouthwestCloudy
December 27
12am69°F20°C9 mph15 km/h SouthwestCloudy
1am67°F20°C9 mph15 km/h SouthwestCloudy
2am66°F19°C8 mph12 km/h SouthMostly Cloudy
3am64°F18°C7 mph12 km/h SouthMostly Cloudy
4am62°F17°C6 mph10 km/h SouthMostly Cloudy
5am60°F16°C4 mph7 km/h SouthMostly Cloudy
6am58°F15°C3 mph6 km/h SoutheastPartly Cloudy
7am57°F14°C3 mph4 km/h EastPartly Cloudy
DateLowHighWindDayNight
December 2656°F13°C70°F21°C9 mph14 km/h from SouthwestMostly CloudyPartly Cloudy
December 2752°F11°C73°F23°C9 mph14 km/h from WestRainDrizzle
December 2854°F12°C75°F24°C7 mph11 km/h from WestMostly ClearMostly Clear
December 2953°F12°C83°F28°C4 mph7 km/h from SouthwestPartly CloudyMostly Clear
December 3057°F14°C81°F27°C6 mph9 km/h from SouthMostly ClearMostly Clear
December 3157°F14°C74°F23°C7 mph11 km/h from SouthwestPartly CloudyPartly Cloudy
January 154°F12°C69°F20°C10 mph16 km/h from SouthPartly CloudyMostly Clear

Yes

Low of 52°F11°C, High of 73°F23°C
Wind: 9 mph14 km/h
Precipitation: 38% rain

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