Yes

you do need a jacket based on the weather in Glasgow, Glasgow Metropolitan Area, UK 1 second ago

Why? Because sorry, it's too cool for just a hoodie!
57°F14°C & Cloudy

Wind is 1 mph1 km/h from the North, gusting to 5 mph8 km/h
August 22
9pm56°F14°C1 mph2 km/h NortheastCloudy
10pm55°F13°C2 mph3 km/h NortheastCloudy
11pm55°F13°C3 mph5 km/h NortheastCloudy
August 23
12am54°F12°C3 mph5 km/h NortheastCloudy
1am54°F12°C3 mph5 km/h NortheastCloudy
2am54°F12°C3 mph6 km/h NortheastCloudy
3am55°F13°C4 mph6 km/h NortheastCloudy
4am57°F14°C4 mph6 km/h EastCloudy
5am58°F15°C4 mph6 km/h NortheastCloudy
6am60°F16°C4 mph7 km/h EastCloudy
7am62°F17°C4 mph6 km/h EastCloudy
8am65°F18°C3 mph5 km/h EastCloudy
DateLowHighWindDayNight
August 2254°F12°C68°F20°C3 mph5 km/h from EastCloudyCloudy
August 2358°F14°C70°F21°C4 mph6 km/h from SouthThunderstormsPartly Cloudy
August 2454°F12°C73°F23°C8 mph13 km/h from SouthMostly CloudyRain
August 2556°F14°C66°F19°C11 mph18 km/h from SouthwestDrizzleDrizzle
August 2653°F12°C63°F17°C8 mph12 km/h from SouthDrizzleDrizzle
August 2752°F11°C64°F18°C7 mph11 km/h from SoutheastRainDrizzle
August 2853°F12°C67°F20°C6 mph10 km/h from NortheastDrizzleDrizzle

Yes

Low of 58°F15°C, High of 70°F21°C
Wind: 4 mph6 km/h
Precipitation: 53% rain

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