Yes

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

Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it and it's windy enough to give you a brand new hairdo!
42°F6°C & Clear

Wind is 11 mph17 km/h from the West, gusting to 24 mph39 km/h
October 24
6am43°F6°C11 mph18 km/h WestClear
7am43°F6°C11 mph18 km/h SouthwestClear
8am44°F7°C12 mph19 km/h SouthwestMostly Clear
9am47°F8°C12 mph19 km/h SouthwestClear
10am49°F9°C13 mph21 km/h SouthwestClear
11am51°F10°C14 mph22 km/h WestMostly Clear
12pm52°F11°C15 mph23 km/h WestMostly Clear
1pm53°F12°C15 mph24 km/h WestPartly Cloudy
2pm53°F12°C14 mph23 km/h WestMostly Clear
3pm53°F12°C14 mph22 km/h WestPartly Cloudy
4pm52°F11°C13 mph20 km/h SouthwestPartly Cloudy
5pm51°F10°C12 mph19 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
October 2342°F6°C53°F12°C13 mph21 km/h from SouthwestMostly ClearMostly Cloudy
October 2443°F6°C52°F11°C11 mph18 km/h from NorthwestPartly CloudyMostly Clear
October 2541°F5°C52°F11°C12 mph19 km/h from WestMostly CloudyDrizzle
October 2743°F6°C54°F12°C13 mph21 km/h from NorthwestMostly ClearPartly Cloudy
October 2842°F6°C57°F14°C10 mph16 km/h from SouthwestMostly CloudyMostly Cloudy
October 2949°F9°C57°F14°C7 mph12 km/h from SouthwestMostly CloudyMostly Cloudy
October 3048°F9°C59°F15°C10 mph15 km/h from SouthMostly CloudyDrizzle

Yes

Low of 44°F7°C, High of 52°F11°C
Wind: 11 mph18 km/h
Precipitation: None

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