Yes

you do need a jacket based on the weather in (Leytonstone), England, United Kingdom 1 second ago

Why? Because a little drizzle out and it's pretty chilly!
54°F12°C & Drizzle

Wind is 6 mph9 km/h from the Southwest, gusting to 15 mph24 km/h
June 6
8pm54°F12°C6 mph10 km/h SouthwestDrizzle
9pm53°F12°C6 mph9 km/h SouthwestDrizzle
10pm52°F11°C5 mph8 km/h SouthwestDrizzle
11pm52°F11°C4 mph7 km/h SouthwestDrizzle
June 7
12am52°F11°C5 mph7 km/h SouthwestDrizzle
1am52°F11°C5 mph9 km/h SouthwestDrizzle
2am52°F11°C7 mph11 km/h SouthwestDrizzle
3am54°F12°C8 mph12 km/h SouthwestCloudy
4am55°F13°C9 mph15 km/h WestMostly Cloudy
5am57°F14°C10 mph16 km/h WestMostly Cloudy
6am59°F15°C10 mph17 km/h WestMostly Cloudy
7am61°F16°C11 mph18 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
June 652°F11°C63°F17°C10 mph16 km/h from WestRainRain
June 748°F9°C64°F18°C11 mph17 km/h from WestPartly CloudyMostly Clear
June 850°F10°C70°F21°C6 mph10 km/h from WestPartly CloudyMostly Cloudy
June 955°F13°C73°F23°C8 mph12 km/h from WestCloudyPartly Cloudy
June 1057°F14°C79°F26°C7 mph11 km/h from SoutheastPartly CloudyMostly Cloudy
June 1163°F17°C77°F25°C9 mph15 km/h from SouthMostly CloudyPartly Cloudy
June 1261°F16°C78°F26°C9 mph14 km/h from SouthwestPartly CloudyClear

Yes

Low of 48°F9°C, High of 64°F18°C
Wind: 11 mph17 km/h
Precipitation: 14% rain

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