Yes

you do need a jacket based on the weather in Glasgow G12 8QQ, UK 1 second ago

Why? Because it's not very warm out!
58°F14°C & Mostly Clear

Wind is 4 mph6 km/h from the South, gusting to 9 mph15 km/h
August 26
7pm57°F14°C3 mph6 km/h SouthMostly Clear
8pm56°F13°C3 mph5 km/h SouthMostly Cloudy
9pm55°F13°C3 mph4 km/h SouthMostly Cloudy
10pm55°F13°C2 mph4 km/h SoutheastCloudy
11pm55°F13°C3 mph5 km/h SoutheastMostly Cloudy
August 27
12am54°F12°C3 mph5 km/h SoutheastMostly Cloudy
1am54°F12°C4 mph6 km/h SoutheastMostly Cloudy
2am55°F13°C4 mph7 km/h SoutheastMostly Cloudy
3am57°F14°C5 mph8 km/h SoutheastPartly Cloudy
4am60°F15°C8 mph12 km/h SoutheastPartly Cloudy
5am62°F17°C9 mph15 km/h SoutheastPartly Cloudy
6am64°F18°C11 mph17 km/h SoutheastMostly Cloudy
DateLowHighWindDayNight
August 2557°F14°C67°F20°C8 mph13 km/h from SouthwestPartly CloudyDrizzle
August 2654°F12°C65°F18°C8 mph14 km/h from SoutheastRainDrizzle
August 2755°F13°C62°F17°C9 mph14 km/h from SouthRainDrizzle
August 2853°F12°C62°F17°C10 mph15 km/h from SouthwestRainPartly Cloudy
August 2954°F12°C61°F16°C8 mph13 km/h from SouthRainThunderstorms
August 3053°F12°C61°F16°C14 mph22 km/h from SouthwestDrizzleDrizzle
August 3151°F11°C59°F15°C8 mph13 km/h from SouthwestRainDrizzle

Yes

Low of 55°F13°C, High of 65°F19°C
Wind: 8 mph14 km/h
Precipitation: 69% rain

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