Yes

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

Why? Because rain: where every drop seems to aim directly at your glasses and the air feels like the cozy middle ground between summer and winter and the wind is harsh and biting!
55°F13°C & Rain

Wind is 12 mph19 km/h from the West, gusting to 21 mph33 km/h
June 14
7pm55°F13°C12 mph19 km/h WestDrizzle
8pm54°F12°C12 mph19 km/h WestCloudy
9pm54°F12°C11 mph18 km/h WestCloudy
10pm54°F12°C9 mph15 km/h WestCloudy
11pm53°F12°C9 mph14 km/h SouthwestCloudy
June 15
12am53°F12°C8 mph14 km/h SouthwestMostly Cloudy
1am53°F12°C8 mph14 km/h SouthwestMostly Cloudy
2am54°F12°C10 mph15 km/h SouthwestMostly Cloudy
3am55°F13°C11 mph17 km/h SouthwestMostly Cloudy
4am56°F13°C11 mph17 km/h SouthwestMostly Cloudy
5am57°F14°C12 mph19 km/h SouthwestCloudy
6am57°F14°C13 mph20 km/h SouthwestCloudy
DateLowHighWindDayNight
June 1352°F11°C62°F17°C8 mph13 km/h from NortheastRainRain
June 1453°F12°C60°F16°C12 mph20 km/h from SouthwestCloudyMostly Cloudy
June 1554°F12°C66°F19°C12 mph19 km/h from SouthwestDrizzleDrizzle
June 1654°F12°C64°F18°C15 mph24 km/h from WestWindyMostly Cloudy
June 1752°F11°C65°F19°C11 mph18 km/h from WestMostly CloudyPartly Cloudy
June 1851°F10°C77°F25°C7 mph12 km/h from SoutheastMostly ClearMostly Cloudy
June 1959°F15°C73°F23°C12 mph19 km/h from SouthwestMostly CloudyMostly Cloudy

Yes

Low of 53°F12°C, High of 61°F16°C
Wind: 12 mph20 km/h
Precipitation: 25% rain

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