Yes

you do need a jacket based on the weather in Edithburgh SA 5583, Australia 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and it's really really huffing out there!
57°F14°C & Windy

Wind is 21 mph34 km/h from the West, gusting to 34 mph54 km/h
August 26
11pm58°F14°C21 mph35 km/h WestWindy
August 27
12am58°F14°C21 mph34 km/h WestWindy
1am58°F14°C22 mph35 km/h WestWindy
2am57°F14°C22 mph35 km/h WestWindy
3am56°F13°C21 mph34 km/h WestWindy
4am55°F13°C20 mph33 km/h WestWindy
5am53°F12°C19 mph31 km/h WestWindy
6am52°F11°C18 mph29 km/h WestDrizzle
7am52°F11°C17 mph27 km/h WestWindy
8am52°F11°C16 mph27 km/h WestWindy
9am52°F11°C17 mph28 km/h WestWindy
10am52°F11°C18 mph28 km/h WestWindy
DateLowHighWindDayNight
August 2651°F11°C58°F14°C20 mph33 km/h from WestDrizzleDrizzle
August 2751°F10°C58°F14°C20 mph31 km/h from WestRainRain
August 2848°F9°C52°F11°C29 mph46 km/h from SouthwestDrizzleDrizzle
August 2947°F9°C56°F13°C12 mph20 km/h from SouthwestMostly CloudyMostly Cloudy
August 3048°F9°C57°F14°C11 mph18 km/h from WestMostly CloudyPartly Cloudy
August 3147°F9°C59°F15°C10 mph16 km/h from WestMostly CloudyPartly Cloudy
September 146°F8°C61°F16°C9 mph15 km/h from NorthwestPartly CloudyPartly Cloudy

Yes

Low of 51°F11°C, High of 58°F15°C
Wind: 20 mph31 km/h
Precipitation: 56% rain

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