Yes

you do need a jacket based on the weather in RAF Fairford, Ohio Ave, Fairford GL7 4DG, UK 1 second ago

Why? Because it's cold. simple as that.
42°F6°C & Drizzle

Wind is 9 mph14 km/h from the NE, gusting to 16 mph26 km/h
April 26
10pm42°F5°C9 mph15 km/h NERain
11pm41°F5°C10 mph16 km/h NECloudy
April 27
12am40°F5°C11 mph17 km/h NECloudy
1am40°F4°C11 mph18 km/h NECloudy
2am40°F4°C12 mph19 km/h NECloudy
3am40°F5°C12 mph20 km/h NECloudy
4am41°F5°C13 mph21 km/h NECloudy
5am42°F6°C13 mph22 km/h NECloudy
6am44°F6°C14 mph23 km/h NECloudy
7am45°F7°C14 mph23 km/h NECloudy
8am47°F8°C14 mph22 km/h NECloudy
9am48°F9°C13 mph20 km/h NECloudy
DateLowHighWindDayNight
April 2640°F4°C50°F10°C13 mph21 km/h from NEDrizzleRain
April 2740°F4°C52°F11°C12 mph19 km/h from WRainMostly Clear
April 2837°F3°C57°F14°C14 mph23 km/h from SPartly CloudyMostly Clear
April 2943°F6°C60°F16°C16 mph25 km/h from SEWindyMostly Cloudy
April 3047°F8°C62°F17°C7 mph12 km/h from SMostly CloudyMostly Cloudy
May 146°F8°C60°F16°C9 mph15 km/h from NWDrizzlePartly Cloudy
May 245°F7°C64°F18°C12 mph19 km/h from NPartly CloudyMostly Cloudy

Yes

Low of 40°F5°C, High of 52°F11°C
Wind: 12 mph19 km/h
Precipitation: 72% rain

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