Yes

you do need a jacket based on the weather in (Gungahlin), Australian Capital Territory, Australia 1 second ago

Why? Because looks like it's raining and it's pretty chilly!
57°F14°C & Rain

Wind is 8 mph13 km/h from the Northwest, gusting to 17 mph27 km/h
September 16
5am57°F14°C8 mph13 km/h NorthwestThunderstorms
6am56°F13°C10 mph16 km/h NorthwestThunderstorms
7am55°F13°C10 mph15 km/h NorthwestThunderstorms
8am54°F12°C10 mph16 km/h NorthwestDrizzle
9am53°F12°C11 mph18 km/h NorthwestDrizzle
10am53°F11°C11 mph18 km/h NorthwestDrizzle
11am51°F11°C11 mph17 km/h NorthwestMostly Cloudy
12pm50°F10°C10 mph17 km/h NorthwestPartly Cloudy
1pm48°F9°C9 mph15 km/h NorthwestPartly Cloudy
2pm47°F8°C10 mph16 km/h NorthwestMostly Clear
3pm46°F8°C10 mph16 km/h NorthwestMostly Clear
4pm45°F7°C10 mph16 km/h NorthwestMostly Clear
DateLowHighWindDayNight
September 1550°F10°C65°F18°C10 mph16 km/h from NorthwestThunderstormsThunderstorms
September 1640°F4°C57°F14°C15 mph24 km/h from WestClearClear
September 1733°F1°C61°F16°C6 mph10 km/h from NorthwestClearClear
September 1837°F3°C63°F17°C10 mph16 km/h from NorthwestMostly CloudyRain
September 1939°F4°C52°F11°C16 mph25 km/h from WestWindyPartly Cloudy
September 2038°F3°C57°F14°C11 mph18 km/h from WestPartly CloudyPartly Cloudy
September 2138°F3°C56°F13°C11 mph18 km/h from WestPartly CloudyMostly Clear

Yes

Low of 39°F4°C, High of 57°F14°C
Wind: 15 mph24 km/h
Precipitation: None

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