Yes

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

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer and the wind is harsh and biting!
47°F8°C & Mostly Cloudy

Wind is 11 mph18 km/h from the Southwest, gusting to 21 mph33 km/h
November 3
1am47°F8°C11 mph18 km/h SouthwestMostly Cloudy
2am48°F9°C13 mph20 km/h SouthwestCloudy
3am49°F9°C14 mph22 km/h SouthwestCloudy
4am50°F10°C15 mph24 km/h SouthwestCloudy
5am51°F11°C15 mph24 km/h SouthwestCloudy
6am53°F12°C16 mph26 km/h SouthwestWindy
7am53°F12°C17 mph28 km/h SouthwestWindy
8am54°F12°C18 mph28 km/h SouthwestWindy
9am56°F13°C18 mph29 km/h SouthwestWindy
10am57°F14°C18 mph29 km/h SouthwestWindy
11am58°F14°C19 mph30 km/h SouthwestWindy
12pm59°F15°C20 mph32 km/h SouthwestWindy
DateLowHighWindDayNight
November 346°F8°C59°F15°C19 mph30 km/h from SouthwestWindyWindy
November 455°F13°C59°F15°C16 mph25 km/h from SouthDrizzleDrizzle
November 556°F13°C60°F16°C12 mph19 km/h from SouthDrizzleDrizzle
November 646°F8°C58°F14°C10 mph17 km/h from SouthDrizzleMostly Clear
November 745°F7°C57°F14°C14 mph23 km/h from SouthDrizzleCloudy
November 844°F7°C57°F14°C6 mph9 km/h from WestPartly CloudyPartly Cloudy
November 942°F6°C57°F14°C9 mph14 km/h from SouthMostly CloudyMostly Cloudy

Yes

Low of 55°F13°C, High of 58°F15°C
Wind: 16 mph25 km/h
Precipitation: 64% rain

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