Yes

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

Why? Because it's really really huffing out there!
60°F15°C & Windy

Wind is 19 mph31 km/h from the Southwest, gusting to 36 mph58 km/h
September 11
10am60°F15°C20 mph32 km/h SouthwestDrizzle
11am59°F15°C19 mph31 km/h SouthwestWindy
12pm58°F15°C20 mph32 km/h SouthwestWindy
1pm57°F14°C16 mph26 km/h SouthwestDrizzle
2pm57°F14°C18 mph28 km/h SouthwestWindy
3pm56°F13°C18 mph30 km/h SouthwestWindy
4pm55°F13°C18 mph29 km/h SouthwestWindy
5pm55°F13°C18 mph29 km/h WestWindy
6pm54°F12°C15 mph24 km/h WestDrizzle
7pm53°F12°C14 mph22 km/h WestDrizzle
8pm53°F12°C13 mph20 km/h SouthwestMostly Cloudy
9pm53°F12°C13 mph21 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
September 1053°F12°C60°F16°C15 mph24 km/h from SouthwestRainRain
September 1152°F11°C61°F16°C14 mph22 km/h from SouthwestRainRain
September 1252°F11°C61°F16°C13 mph21 km/h from SouthwestDrizzlePartly Cloudy
September 1351°F10°C66°F19°C14 mph23 km/h from SouthRainDrizzle
September 1454°F12°C62°F17°C23 mph37 km/h from WestDrizzlePartly Cloudy
September 1551°F11°C62°F17°C13 mph21 km/h from WestMostly CloudyRain
September 1653°F12°C66°F19°C16 mph26 km/h from SouthwestRainMostly Cloudy

Yes

Low of 52°F11°C, High of 61°F16°C
Wind: 14 mph22 km/h
Precipitation: 79% rain

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