Yes

you do need a jacket based on the weather in Nottingham, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
59°F15°C & Partly Cloudy

Wind is 6 mph9 km/h from the Northwest, gusting to 14 mph22 km/h
July 26
6pm59°F15°C6 mph9 km/h NorthwestPartly Cloudy
7pm57°F14°C5 mph8 km/h WestMostly Cloudy
8pm56°F13°C5 mph7 km/h WestCloudy
9pm55°F13°C4 mph7 km/h WestCloudy
10pm55°F13°C4 mph6 km/h WestCloudy
11pm55°F13°C4 mph7 km/h WestCloudy
July 27
12am55°F13°C4 mph7 km/h WestCloudy
1am55°F13°C4 mph7 km/h WestCloudy
2am57°F14°C5 mph8 km/h WestCloudy
3am59°F15°C6 mph10 km/h NorthwestMostly Cloudy
4am61°F16°C7 mph12 km/h NorthwestMostly Cloudy
5am62°F17°C8 mph13 km/h NorthwestMostly Cloudy
DateLowHighWindDayNight
July 2557°F14°C72°F22°C5 mph7 km/h from NorthwestMostly CloudyMostly Cloudy
July 2655°F13°C69°F20°C9 mph14 km/h from NorthwestMostly CloudyPartly Cloudy
July 2754°F12°C71°F21°C11 mph17 km/h from NorthwestMostly CloudyMostly Clear
July 2853°F12°C68°F20°C7 mph11 km/h from WestRainDrizzle
July 2957°F14°C71°F22°C6 mph10 km/h from NorthwestPartly CloudyPartly Cloudy
July 3057°F14°C71°F22°C7 mph12 km/h from WestMostly CloudyDrizzle
July 3156°F13°C66°F19°C9 mph14 km/h from NorthDrizzleDrizzle

Yes

Low of 55°F13°C, High of 69°F21°C
Wind: 9 mph14 km/h
Precipitation: 14% rain

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