Yes

you do need a jacket based on the weather in Royal Leamington Spa, UK 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it and the wind makes walking forward feel like moonwalking in reverse!
51°F11°C & Windy

Wind is 16 mph26 km/h from the South, gusting to 30 mph49 km/h
June 2
11pm51°F11°C17 mph27 km/h SouthWindy
June 3
12am52°F11°C18 mph29 km/h SouthWindy
1am53°F12°C20 mph32 km/h SouthDrizzle
2am53°F12°C20 mph32 km/h SouthDrizzle
3am54°F12°C21 mph33 km/h SouthDrizzle
4am56°F13°C20 mph32 km/h SouthwestDrizzle
5am57°F14°C17 mph28 km/h SouthwestRain
6am59°F15°C16 mph26 km/h SouthwestWindy
7am61°F16°C16 mph26 km/h SouthwestWindy
8am63°F17°C16 mph25 km/h WestWindy
9am64°F18°C16 mph26 km/h WestWindy
10am64°F18°C16 mph26 km/h WestWindy
DateLowHighWindDayNight
June 250°F10°C64°F18°C17 mph27 km/h from SouthwestRainPartly Cloudy
June 346°F8°C61°F16°C13 mph21 km/h from SouthwestMostly CloudyDrizzle
June 449°F9°C62°F17°C12 mph19 km/h from SouthwestRainPartly Cloudy
June 548°F9°C62°F17°C11 mph18 km/h from SouthwestDrizzleDrizzle
June 650°F10°C59°F15°C13 mph21 km/h from SouthwestRainDrizzle
June 746°F8°C61°F16°C14 mph22 km/h from NorthwestPartly CloudyMostly Clear
June 845°F7°C64°F18°C10 mph15 km/h from SouthwestMostly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 61°F16°C
Wind: 13 mph21 km/h
Precipitation: 23% rain

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