Yes

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

Why? Because it's pretty chilly and it's windy enough to give you a brand new hairdo!
57°F14°C & Cloudy

Wind is 11 mph18 km/h from the Southeast, gusting to 21 mph34 km/h
September 10
1am57°F14°C12 mph19 km/h SoutheastCloudy
2am57°F14°C12 mph19 km/h SouthMostly Cloudy
3am58°F14°C10 mph16 km/h SouthMostly Cloudy
4am59°F15°C11 mph17 km/h SouthPartly Cloudy
5am61°F16°C11 mph18 km/h SouthDrizzle
6am63°F17°C12 mph20 km/h SouthDrizzle
7am63°F17°C12 mph20 km/h SouthDrizzle
8am63°F17°C12 mph20 km/h SouthDrizzle
9am64°F18°C12 mph20 km/h SouthDrizzle
10am64°F18°C12 mph20 km/h SouthDrizzle
11am64°F18°C14 mph22 km/h SouthDrizzle
12pm64°F18°C13 mph21 km/h SouthDrizzle
DateLowHighWindDayNight
September 955°F13°C64°F18°C12 mph20 km/h from SouthDrizzleDrizzle
September 1053°F12°C62°F16°C15 mph25 km/h from SouthwestDrizzleDrizzle
September 1150°F10°C63°F17°C15 mph24 km/h from SouthwestDrizzleThunderstorms
September 1251°F11°C63°F17°C14 mph22 km/h from SouthwestThunderstormsThunderstorms
September 1354°F12°C67°F19°C19 mph30 km/h from SouthThunderstormsThunderstorms
September 1453°F12°C63°F17°C19 mph31 km/h from SouthwestWindyPartly Cloudy
September 1551°F10°C63°F17°C15 mph24 km/h from SouthwestWindyMostly Cloudy

Yes

Low of 53°F12°C, High of 62°F17°C
Wind: 15 mph25 km/h
Precipitation: 68% rain

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