Yes

you do need a jacket based on the weather in Sible Hedingham, Halstead CO9, UK 1 second ago

Why? Because it's so windy, your hat has officially retired from your head!
65°F18°C & Mostly Cloudy

Wind is 12 mph19 km/h from the North, gusting to 22 mph36 km/h
August 21
8am66°F19°C12 mph19 km/h NorthMostly Cloudy
9am67°F19°C11 mph18 km/h NorthPartly Cloudy
10am67°F20°C12 mph20 km/h NorthPartly Cloudy
11am68°F20°C11 mph18 km/h NorthPartly Cloudy
12pm66°F19°C12 mph20 km/h NorthMostly Cloudy
1pm65°F18°C12 mph20 km/h NorthMostly Cloudy
2pm63°F17°C11 mph18 km/h NorthMostly Cloudy
3pm61°F16°C9 mph14 km/h NorthMostly Cloudy
4pm59°F15°C7 mph12 km/h NorthMostly Cloudy
5pm57°F14°C7 mph10 km/h NorthPartly Cloudy
6pm55°F13°C5 mph8 km/h NorthMostly Clear
7pm53°F12°C5 mph7 km/h NorthClear
DateLowHighWindDayNight
August 2053°F12°C68°F20°C11 mph17 km/h from NorthMostly CloudyMostly Clear
August 2148°F9°C70°F21°C6 mph9 km/h from NorthwestMostly CloudyMostly Cloudy
August 2254°F12°C69°F20°C7 mph11 km/h from NortheastMostly CloudyPartly Cloudy
August 2350°F10°C71°F21°C6 mph10 km/h from EastMostly ClearPartly Cloudy
August 2451°F10°C72°F22°C7 mph12 km/h from SoutheastMostly ClearMostly Clear
August 2554°F12°C76°F24°C11 mph18 km/h from SouthMostly CloudyMostly Cloudy
August 2659°F15°C73°F23°C9 mph14 km/h from SouthwestMostly CloudyMostly Cloudy

Yes

Low of 48°F9°C, High of 70°F21°C
Wind: 6 mph9 km/h
Precipitation: None

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