Yes

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

Why? Because the wind makes walking forward feel like moonwalking in reverse!
64°F18°C & Cloudy

Wind is 14 mph23 km/h from the Southwest, gusting to 26 mph42 km/h
September 17
8pm64°F18°C15 mph24 km/h SouthwestCloudy
9pm63°F17°C15 mph23 km/h SouthwestCloudy
10pm63°F17°C14 mph23 km/h SouthwestCloudy
11pm63°F17°C14 mph22 km/h SouthwestCloudy
September 18
12am63°F17°C14 mph22 km/h SouthwestMostly Cloudy
1am62°F17°C13 mph22 km/h SouthwestCloudy
2am63°F17°C13 mph21 km/h SouthwestCloudy
3am63°F17°C14 mph23 km/h SouthwestCloudy
4am64°F18°C14 mph23 km/h SouthwestCloudy
5am65°F19°C17 mph27 km/h SouthwestWindy
6am67°F19°C17 mph27 km/h SouthwestWindy
7am68°F20°C17 mph28 km/h SouthwestWindy
DateLowHighWindDayNight
September 1762°F17°C72°F22°C16 mph26 km/h from SouthwestWindyMostly Cloudy
September 1860°F16°C76°F24°C11 mph18 km/h from SouthwestPartly CloudyPartly Cloudy
September 1956°F13°C71°F22°C11 mph17 km/h from SouthDrizzleWindy
September 2050°F10°C61°F16°C14 mph23 km/h from WestDrizzleDrizzle
September 2147°F9°C59°F15°C14 mph22 km/h from NorthDrizzleMostly Clear
September 2245°F7°C58°F15°C11 mph18 km/h from NorthPartly CloudyPartly Cloudy
September 2347°F9°C59°F15°C9 mph15 km/h from NorthDrizzleMostly Cloudy

No

Low of 60°F16°C, High of 75°F24°C
Wind: 11 mph18 km/h
Precipitation: None

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