Yes

you do need a jacket based on the weather in Burford OX18, UK 1 second ago

Why? Because it's cold. simple as that.
45°F7°C & Cloudy

Wind is 5 mph8 km/h from the N, gusting to 10 mph16 km/h
April 25
5pm44°F6°C5 mph7 km/h NCloudy
6pm42°F6°C5 mph8 km/h NECloudy
7pm41°F5°C5 mph7 km/h NECloudy
8pm41°F5°C4 mph7 km/h NECloudy
9pm40°F4°C4 mph7 km/h NECloudy
10pm39°F4°C4 mph6 km/h NECloudy
11pm38°F3°C4 mph7 km/h NECloudy
April 26
12am37°F3°C5 mph8 km/h NECloudy
1am36°F2°C5 mph8 km/h NECloudy
2am37°F3°C6 mph9 km/h NEMostly Cloudy
3am39°F4°C7 mph11 km/h NEMostly Cloudy
4am41°F5°C7 mph12 km/h NEMostly Cloudy
DateLowHighWindDayNight
April 2435°F2°C50°F10°C6 mph10 km/h from WCloudyCloudy
April 2536°F2°C52°F11°C7 mph11 km/h from NECloudyDrizzle
April 2639°F4°C49°F9°C13 mph21 km/h from NEDrizzleRain
April 2740°F5°C52°F11°C11 mph18 km/h from NWRainMostly Clear
April 2837°F3°C57°F14°C14 mph22 km/h from SPartly CloudyPartly Cloudy
April 2942°F5°C60°F15°C11 mph18 km/h from SEMostly CloudyRain
April 3048°F9°C66°F19°C7 mph12 km/h from EMostly CloudyCloudy

Yes

Low of 37°F3°C, High of 52°F11°C
Wind: 7 mph11 km/h
Precipitation: None

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