Yes

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

Why? Because it's cool. Pleasantly cool, but cool.
52°F11°C & Cloudy

Wind is 11 mph17 km/h from the E, gusting to 19 mph31 km/h
April 26
10am52°F11°C11 mph17 km/h EDrizzle
11am51°F11°C10 mph17 km/h ECloudy
12pm50°F10°C9 mph14 km/h ECloudy
1pm49°F10°C9 mph14 km/h EDrizzle
2pm49°F9°C7 mph12 km/h EDrizzle
3pm48°F9°C7 mph11 km/h ECloudy
4pm47°F8°C6 mph10 km/h ECloudy
5pm47°F8°C6 mph9 km/h NECloudy
6pm46°F8°C6 mph10 km/h NECloudy
7pm46°F8°C7 mph11 km/h NECloudy
8pm45°F7°C7 mph12 km/h NECloudy
9pm44°F7°C8 mph12 km/h NECloudy
DateLowHighWindDayNight
April 2542°F6°C52°F11°C9 mph14 km/h from EDrizzleDrizzle
April 2642°F6°C54°F12°C11 mph18 km/h from NEDrizzleRain
April 2742°F6°C53°F12°C10 mph15 km/h from NWRainMostly Clear
April 2840°F4°C57°F14°C15 mph24 km/h from SMostly CloudyPartly Cloudy
April 2947°F8°C60°F15°C16 mph26 km/h from SEDrizzleDrizzle
April 3047°F9°C61°F16°C8 mph12 km/h from SEMostly CloudyMostly Cloudy
May 148°F9°C64°F18°C10 mph16 km/h from NCloudyMostly Cloudy

Yes

Low of 42°F6°C, High of 54°F12°C
Wind: 11 mph18 km/h
Precipitation: 57% rain

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