Yes

you do need a jacket based on the weather in Flagstone QLD, Australia 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
54°F12°C & Partly Cloudy

Wind is 2 mph4 km/h from the Southwest, gusting to 7 mph11 km/h
July 31
6am53°F12°C3 mph5 km/h SouthwestMostly Cloudy
7am53°F11°C3 mph6 km/h SouthwestMostly Cloudy
8am52°F11°C4 mph7 km/h SouthwestMostly Cloudy
9am51°F11°C5 mph7 km/h SouthwestMostly Cloudy
10am51°F10°C5 mph8 km/h SouthwestMostly Cloudy
11am51°F10°C5 mph8 km/h SouthwestMostly Cloudy
12pm50°F10°C5 mph8 km/h SouthwestMostly Cloudy
1pm50°F10°C4 mph7 km/h SouthwestMostly Cloudy
2pm49°F10°C5 mph8 km/h SouthwestMostly Cloudy
3pm49°F10°C5 mph8 km/h SouthwestPartly Cloudy
4pm48°F9°C5 mph8 km/h SouthwestPartly Cloudy
5pm50°F10°C5 mph7 km/h SouthwestPartly Cloudy
DateLowHighWindDayNight
July 3047°F8°C67°F19°C5 mph7 km/h from WestMostly ClearMostly Cloudy
July 3148°F9°C66°F19°C4 mph7 km/h from SouthRainDrizzle
August 145°F7°C62°F17°C8 mph12 km/h from WestRainDrizzle
August 243°F6°C67°F19°C13 mph20 km/h from SouthwestDrizzlePartly Cloudy
August 356°F14°C70°F21°C10 mph16 km/h from SouthPartly CloudyMostly Clear
August 453°F12°C73°F23°C6 mph9 km/h from SouthMostly ClearMostly Clear
August 552°F11°C73°F23°C5 mph8 km/h from SouthMostly ClearMostly Clear

Yes

Low of 48°F9°C, High of 65°F19°C
Wind: 4 mph7 km/h
Precipitation: 34% rain

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