Yes

you do need a jacket based on the weather in Port Pirie SA 5540, Australia 1 second ago

Why? Because it's really really huffing out there!
75°F24°C & Windy

Wind is 17 mph28 km/h from the West, gusting to 33 mph53 km/h
October 26
7am74°F23°C18 mph28 km/h WestWindy
8am71°F22°C16 mph26 km/h WestWindy
9am68°F20°C16 mph25 km/h WestWindy
10am66°F19°C15 mph24 km/h WestClear
11am64°F18°C14 mph22 km/h WestMostly Clear
12pm62°F17°C14 mph22 km/h WestMostly Clear
1pm60°F16°C13 mph21 km/h WestMostly Cloudy
2pm59°F15°C14 mph22 km/h WestMostly Cloudy
3pm59°F15°C12 mph20 km/h WestCloudy
4pm58°F15°C11 mph18 km/h WestMostly Cloudy
5pm58°F14°C10 mph16 km/h SouthwestMostly Cloudy
6pm58°F14°C9 mph14 km/h SouthwestCloudy
DateLowHighWindDayNight
October 2560°F15°C76°F24°C16 mph25 km/h from WestWindyMostly Cloudy
October 2657°F14°C68°F20°C6 mph9 km/h from SouthwestMostly CloudyMostly Cloudy
October 2754°F12°C70°F21°C9 mph14 km/h from SouthMostly ClearClear
October 2849°F9°C72°F22°C4 mph7 km/h from SouthwestMostly ClearPartly Cloudy
October 2953°F12°C81°F27°C7 mph12 km/h from NorthPartly CloudyPartly Cloudy
October 3058°F15°C73°F23°C13 mph21 km/h from SouthwestMostly ClearClear
October 3153°F12°C85°F29°C5 mph8 km/h from NorthClearPartly Cloudy

Yes

Low of 57°F14°C, High of 68°F20°C
Wind: 6 mph9 km/h
Precipitation: None

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