Yes

you do need a jacket based on the weather in Mill St, Leeds LS9 8NA, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and the wind makes walking forward feel like moonwalking in reverse!
55°F13°C & Cloudy

Wind is 14 mph22 km/h from the West, gusting to 29 mph46 km/h
May 25
2am55°F13°C16 mph25 km/h WestWindy
3am54°F12°C15 mph24 km/h WestMostly Cloudy
4am55°F13°C17 mph27 km/h WestWindy
5am56°F13°C17 mph27 km/h WestWindy
6am57°F14°C17 mph27 km/h WestWindy
7am58°F14°C18 mph28 km/h WestWindy
8am58°F14°C17 mph27 km/h WestWindy
9am59°F15°C18 mph29 km/h WestWindy
10am60°F16°C18 mph29 km/h WestWindy
11am61°F16°C18 mph29 km/h WestWindy
12pm59°F15°C17 mph28 km/h WestWindy
1pm58°F15°C16 mph26 km/h WestWindy
DateLowHighWindDayNight
May 2450°F10°C61°F16°C17 mph27 km/h from WestDrizzleDrizzle
May 2548°F9°C60°F15°C13 mph21 km/h from SouthwestDrizzleDrizzle
May 2651°F11°C59°F15°C10 mph16 km/h from SouthwestDrizzleDrizzle
May 2752°F11°C62°F16°C15 mph25 km/h from WestDrizzleDrizzle
May 2850°F10°C64°F18°C12 mph19 km/h from WestDrizzleMostly Cloudy
May 2951°F11°C66°F19°C9 mph15 km/h from WestMostly CloudyRain
May 3050°F10°C69°F21°C8 mph13 km/h from SouthwestMostly CloudyMostly Cloudy

Yes

Low of 48°F9°C, High of 60°F16°C
Wind: 13 mph21 km/h
Precipitation: 54% rain

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