Yes

you do need a jacket based on the weather in Northcote VIC 3070, Australia 1 second ago

Why? Because a jacket will keep you cozy, but you won't break a seat and it's fairly windy outside!
58°F15°C & Mostly Clear

Wind is 9 mph14 km/h from the South, gusting to 21 mph34 km/h
August 23
2am58°F15°C9 mph15 km/h SouthMostly Clear
3am57°F14°C9 mph14 km/h SouthMostly Clear
4am54°F12°C8 mph12 km/h SouthClear
5am53°F12°C6 mph9 km/h SouthClear
6am51°F11°C4 mph7 km/h SouthClear
7am49°F9°C3 mph5 km/h SoutheastClear
8am47°F8°C2 mph4 km/h SoutheastClear
9am46°F8°C2 mph3 km/h SoutheastMostly Clear
10am44°F7°C2 mph2 km/h SouthwestMostly Clear
11am43°F6°C2 mph4 km/h NorthwestMostly Clear
12pm42°F6°C2 mph4 km/h NorthMostly Clear
1pm41°F5°C2 mph3 km/h NorthwestPartly Cloudy
DateLowHighWindDayNight
August 2244°F7°C60°F15°C6 mph9 km/h from SouthPartly CloudyMostly Clear
August 2340°F4°C60°F16°C5 mph8 km/h from SouthClearMostly Clear
August 2440°F4°C67°F19°C7 mph12 km/h from NorthPartly CloudyCloudy
August 2554°F12°C64°F18°C16 mph26 km/h from NorthDrizzleDrizzle
August 2649°F9°C59°F15°C14 mph23 km/h from NorthwestDrizzleDrizzle
August 2746°F8°C58°F14°C11 mph18 km/h from NorthwestDrizzleDrizzle
August 2842°F5°C53°F11°C15 mph24 km/h from WestDrizzleDrizzle

Yes

Low of 40°F5°C, High of 60°F16°C
Wind: 5 mph8 km/h
Precipitation: None

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