Yes

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

Why? Because it's so windy, your hat will probably launch into orbit!
67°F20°C & Cloudy

Wind is 14 mph23 km/h from the Southwest, gusting to 29 mph47 km/h
May 29
8am69°F20°C15 mph24 km/h SouthwestCloudy
9am70°F21°C15 mph23 km/h SouthwestCloudy
10am71°F22°C14 mph23 km/h SouthwestCloudy
11am71°F22°C14 mph23 km/h SouthwestCloudy
12pm70°F21°C14 mph23 km/h SouthwestMostly Cloudy
1pm70°F21°C13 mph21 km/h SouthwestCloudy
2pm68°F20°C12 mph20 km/h SouthwestCloudy
3pm66°F19°C11 mph18 km/h SouthwestCloudy
4pm64°F18°C10 mph16 km/h SouthwestMostly Cloudy
5pm62°F17°C9 mph15 km/h SouthwestMostly Cloudy
6pm61°F16°C8 mph14 km/h SouthwestPartly Cloudy
7pm60°F15°C8 mph13 km/h SouthwestMostly Clear
DateLowHighWindDayNight
May 2855°F13°C71°F22°C14 mph22 km/h from SouthwestCloudyPartly Cloudy
May 2957°F14°C73°F23°C10 mph16 km/h from SouthwestMostly CloudyMostly Cloudy
May 3057°F14°C74°F24°C7 mph11 km/h from SouthwestMostly CloudyMostly Cloudy
May 3155°F13°C68°F20°C13 mph20 km/h from WestMostly CloudyMostly Clear
June 151°F10°C68°F20°C8 mph13 km/h from WestPartly CloudyPartly Cloudy
June 251°F10°C65°F18°C15 mph23 km/h from SouthwestDrizzleDrizzle
June 352°F11°C62°F17°C14 mph22 km/h from SouthwestMostly CloudyDrizzle

Yes

Low of 56°F14°C, High of 73°F23°C
Wind: 10 mph16 km/h
Precipitation: None

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