Yes

you do need a jacket based on the weather in Scarborough WA 6019, Australia 1 second ago

Why? Because the cold's there, but it's just a reminder, not an invasion!
50°F10°C & Clear

Wind is 8 mph13 km/h from the Northeast, gusting to 16 mph25 km/h
September 10
8pm51°F11°C9 mph14 km/h NortheastClear
9pm56°F13°C9 mph15 km/h NortheastClear
10pm61°F16°C10 mph16 km/h NortheastClear
11pm65°F18°C9 mph15 km/h NortheastClear
September 11
12am68°F20°C9 mph14 km/h NortheastClear
1am70°F21°C7 mph12 km/h NorthClear
2am71°F21°C6 mph10 km/h NorthClear
3am71°F22°C5 mph7 km/h NorthClear
4am71°F21°C4 mph6 km/h NorthClear
5am69°F21°C4 mph6 km/h NortheastClear
6am67°F20°C3 mph6 km/h NortheastClear
7am64°F18°C4 mph6 km/h EastClear
DateLowHighWindDayNight
September 1048°F9°C71°F22°C7 mph11 km/h from NortheastClearMostly Clear
September 1154°F12°C75°F24°C13 mph21 km/h from NorthMostly CloudyDrizzle
September 1260°F15°C69°F21°C14 mph22 km/h from NorthwestDrizzleDrizzle
September 1354°F12°C62°F17°C24 mph39 km/h from WestDrizzleWindy
September 1451°F10°C60°F15°C13 mph21 km/h from SouthwestMostly CloudyMostly Cloudy
September 1548°F9°C63°F17°C9 mph14 km/h from NorthwestPartly CloudyPartly Cloudy
September 1655°F13°C62°F17°C15 mph24 km/h from WestDrizzleMostly Cloudy

Yes

Low of 54°F12°C, High of 75°F24°C
Wind: 13 mph21 km/h
Precipitation: None

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