Yes

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

Why? Because it's bitterly cold.
42°F6°C & Partly Cloudy

Wind is 3 mph5 km/h from the N, gusting to 9 mph15 km/h
April 20
4am44°F7°C5 mph8 km/h NPartly Cloudy
5am46°F8°C7 mph11 km/h NPartly Cloudy
6am49°F9°C7 mph12 km/h NPartly Cloudy
7am51°F10°C9 mph14 km/h NMostly Cloudy
8am52°F11°C9 mph14 km/h NMostly Cloudy
9am53°F12°C9 mph14 km/h NMostly Cloudy
10am55°F13°C9 mph14 km/h NMostly Cloudy
11am55°F13°C9 mph14 km/h NMostly Cloudy
12pm56°F13°C9 mph14 km/h NMostly Cloudy
1pm55°F13°C7 mph12 km/h NMostly Cloudy
2pm54°F12°C6 mph9 km/h NEPartly Cloudy
3pm50°F10°C4 mph6 km/h NEMostly Cloudy
DateLowHighWindDayNight
April 1935°F2°C56°F13°C7 mph12 km/h from NPartly CloudyPartly Cloudy
April 2040°F4°C54°F12°C10 mph16 km/h from NEPartly CloudyPartly Cloudy
April 2139°F4°C51°F10°C3 mph6 km/h from WDrizzleCloudy
April 2242°F6°C52°F11°C11 mph18 km/h from NCloudyMostly Cloudy
April 2337°F3°C54°F12°C6 mph10 km/h from NWMostly CloudyMostly Cloudy
April 2441°F5°C53°F12°C10 mph15 km/h from WMostly CloudyMostly Cloudy
April 2540°F4°C56°F13°C9 mph14 km/h from SWMostly CloudyCloudy

Yes

Low of 40°F5°C, High of 54°F12°C
Wind: 10 mph16 km/h
Precipitation: None

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