Yes

you do need a jacket based on the weather in Warragul St, Dallas VIC 3047, Australia 1 second ago

Why? Because it's close to hurricane level winds!
76°F24°C & Windy

Wind is 24 mph38 km/h from the North, gusting to 52 mph83 km/h
September 15
2am76°F24°C22 mph36 km/h NorthWindy
3am75°F24°C18 mph30 km/h NorthWindy
4am72°F22°C17 mph28 km/h NorthWindy
5am70°F21°C17 mph28 km/h NorthWindy
6am69°F20°C18 mph28 km/h NorthWindy
7am67°F20°C18 mph29 km/h NorthWindy
8am66°F19°C18 mph28 km/h NorthWindy
9am64°F18°C17 mph27 km/h NorthWindy
10am63°F17°C12 mph20 km/h NorthMostly Cloudy
11am63°F17°C11 mph17 km/h NorthCloudy
12pm61°F16°C11 mph18 km/h NorthCloudy
1pm60°F15°C9 mph15 km/h NorthMostly Cloudy
DateLowHighWindDayNight
September 1452°F11°C76°F24°C23 mph36 km/h from NorthWindyDrizzle
September 1550°F10°C63°F17°C13 mph20 km/h from NorthwestDrizzleMostly Clear
September 1644°F6°C58°F15°C9 mph14 km/h from WestMostly CloudyMostly Clear
September 1742°F5°C65°F18°C13 mph21 km/h from NorthMostly ClearMostly Clear
September 1848°F9°C65°F18°C14 mph23 km/h from NorthwestPartly CloudyDrizzle
September 1943°F6°C56°F13°C12 mph20 km/h from WestMostly CloudyDrizzle
September 2045°F7°C60°F16°C12 mph19 km/h from WestDrizzleDrizzle

Yes

Low of 50°F10°C, High of 64°F18°C
Wind: 13 mph20 km/h
Precipitation: 86% rain

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