Yes

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

Why? Because the air feels like the cozy middle ground between summer and winter!
57°F14°C & Mostly Cloudy

Wind is 10 mph16 km/h from the South, gusting to 19 mph30 km/h
November 9
1pm57°F14°C11 mph18 km/h SouthMostly Cloudy
2pm57°F14°C11 mph18 km/h SouthwestCloudy
3pm56°F14°C10 mph16 km/h SouthCloudy
4pm55°F13°C10 mph16 km/h SouthCloudy
5pm54°F12°C9 mph15 km/h SouthCloudy
6pm53°F12°C9 mph15 km/h SouthMostly Cloudy
7pm52°F11°C10 mph16 km/h SouthMostly Cloudy
8pm52°F11°C10 mph17 km/h SouthCloudy
9pm52°F11°C11 mph17 km/h SouthCloudy
10pm52°F11°C11 mph18 km/h SouthCloudy
11pm53°F12°C11 mph18 km/h SouthCloudy
November 10
12am53°F12°C12 mph19 km/h SouthCloudy
DateLowHighWindDayNight
November 943°F6°C57°F14°C8 mph12 km/h from SouthMostly CloudyDrizzle
November 1048°F9°C57°F14°C13 mph20 km/h from SouthRainPartly Cloudy
November 1147°F8°C59°F15°C14 mph23 km/h from SouthCloudyDrizzle
November 1254°F12°C60°F15°C12 mph19 km/h from SouthCloudyCloudy
November 1354°F12°C61°F16°C7 mph12 km/h from SouthwestRainDrizzle
November 1452°F11°C59°F15°C11 mph17 km/h from EastRainDrizzle
November 1546°F8°C54°F12°C11 mph17 km/h from EastRainDrizzle

Yes

Low of 48°F9°C, High of 56°F14°C
Wind: 13 mph20 km/h
Precipitation: 82% rain

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