Yes

you do need a jacket based on the weather in Concord West NSW 2138, Australia 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's on the windy side!
57°F14°C & Cloudy

Wind is 11 mph17 km/h from the North, gusting to 22 mph36 km/h
July 25
10pm59°F15°C11 mph17 km/h NorthPartly Cloudy
11pm62°F17°C11 mph18 km/h NorthMostly Clear
July 26
12am65°F18°C11 mph18 km/h NorthMostly Clear
1am66°F19°C11 mph18 km/h NorthMostly Clear
2am65°F19°C12 mph19 km/h NorthMostly Clear
3am64°F18°C11 mph17 km/h NorthClear
4am61°F16°C9 mph14 km/h NorthClear
5am60°F15°C8 mph13 km/h NorthClear
6am58°F15°C7 mph12 km/h NorthClear
7am57°F14°C7 mph11 km/h NorthClear
8am56°F13°C7 mph12 km/h NorthClear
9am56°F13°C8 mph13 km/h NorthClear
DateLowHighWindDayNight
July 2551°F11°C66°F19°C9 mph14 km/h from NorthRainClear
July 2652°F11°C64°F18°C11 mph18 km/h from NorthwestPartly CloudyMostly Clear
July 2750°F10°C62°F17°C12 mph19 km/h from WestMostly ClearClear
July 2845°F7°C60°F16°C5 mph8 km/h from WestMostly CloudyDrizzle
July 2947°F8°C58°F14°C7 mph11 km/h from SouthwestDrizzleDrizzle
July 3046°F8°C58°F14°C7 mph11 km/h from SouthwestRainDrizzle
July 3144°F7°C56°F13°C7 mph12 km/h from SouthRainRain

Yes

Low of 53°F12°C, High of 64°F18°C
Wind: 11 mph18 km/h
Precipitation: 21% rain

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