Yes

you do need a jacket based on the weather in London, UK 2 minutes ago

Why? Because it's fairly windy outside!
62°F16°C & Cloudy

Wind is 9 mph14 km/h from the Southwest, gusting to 24 mph39 km/h
June 7
11am61°F16°C10 mph16 km/h SouthwestRain
12pm59°F15°C9 mph14 km/h SouthwestRain
1pm58°F15°C8 mph13 km/h SouthwestDrizzle
2pm58°F14°C7 mph11 km/h SouthwestDrizzle
3pm57°F14°C7 mph11 km/h WestDrizzle
4pm56°F13°C6 mph10 km/h WestPartly Cloudy
5pm55°F13°C7 mph11 km/h WestMostly Clear
6pm53°F12°C7 mph11 km/h WestMostly Clear
7pm52°F11°C7 mph11 km/h WestMostly Clear
8pm51°F11°C7 mph12 km/h WestMostly Clear
9pm50°F10°C7 mph12 km/h WestClear
10pm50°F10°C8 mph13 km/h WestMostly Clear
DateLowHighWindDayNight
June 652°F11°C63°F17°C8 mph12 km/h from SouthwestRainDrizzle
June 748°F9°C64°F18°C11 mph17 km/h from WestPartly CloudyMostly Clear
June 850°F10°C68°F20°C7 mph11 km/h from SouthwestMostly CloudyCloudy
June 955°F13°C71°F22°C8 mph12 km/h from WestMostly CloudyMostly Clear
June 1057°F14°C80°F27°C6 mph9 km/h from SoutheastMostly ClearRain
June 1164°F18°C79°F26°C8 mph12 km/h from SouthMostly CloudyPartly Cloudy
June 1261°F16°C77°F25°C8 mph13 km/h from SouthwestMostly CloudyMostly Clear

Yes

Low of 48°F9°C, High of 64°F18°C
Wind: 11 mph17 km/h
Precipitation: 10% rain

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