Yes

you do need a jacket based on the weather in Oxford St, London, UK 1 second ago

Why? Because it's bitterly cold.
43°F6°C & Partly Cloudy

Wind is 4 mph7 km/h from the NW, gusting to 16 mph25 km/h
April 23
8pm42°F5°C5 mph8 km/h NWPartly Cloudy
9pm41°F5°C6 mph9 km/h NWPartly Cloudy
10pm40°F5°C6 mph9 km/h NWMostly Cloudy
11pm41°F5°C7 mph10 km/h NWMostly Cloudy
April 24
12am41°F5°C7 mph11 km/h NWCloudy
1am41°F5°C7 mph11 km/h NWCloudy
2am42°F5°C7 mph11 km/h NWCloudy
3am43°F6°C8 mph12 km/h NWMostly Cloudy
4am44°F7°C9 mph14 km/h NPartly Cloudy
5am46°F8°C10 mph15 km/h NMostly Cloudy
6am48°F9°C10 mph17 km/h NMostly Cloudy
7am49°F9°C10 mph16 km/h NMostly Cloudy
DateLowHighWindDayNight
April 2340°F5°C52°F11°C9 mph15 km/h from NMostly CloudyMostly Cloudy
April 2438°F3°C55°F13°C7 mph12 km/h from WCloudyCloudy
April 2542°F5°C55°F13°C7 mph11 km/h from SECloudyRain
April 2645°F7°C61°F16°C8 mph13 km/h from ERainRain
April 2748°F9°C61°F16°C12 mph20 km/h from SDrizzlePartly Cloudy
April 2848°F9°C62°F17°C11 mph18 km/h from SWPartly CloudyMostly Clear
April 2946°F8°C66°F19°C9 mph14 km/h from SEPartly CloudyCloudy

Yes

Low of 38°F4°C, High of 55°F13°C
Wind: 7 mph12 km/h
Precipitation: 19% rain

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