Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
55°F13°C & Mostly Clear

Wind is 8 mph13 km/h from the Southwest, gusting to 17 mph28 km/h
September 1
9pm55°F13°C8 mph14 km/h SouthwestMostly Clear
10pm54°F12°C8 mph13 km/h SouthwestMostly Clear
11pm53°F12°C8 mph13 km/h SouthwestMostly Clear
September 2
12am53°F12°C8 mph13 km/h SouthwestMostly Clear
1am53°F12°C7 mph11 km/h SouthwestMostly Clear
2am53°F12°C7 mph11 km/h SouthPartly Cloudy
3am54°F12°C9 mph14 km/h SouthwestMostly Cloudy
4am57°F14°C9 mph15 km/h SouthwestMostly Cloudy
5am60°F15°C9 mph14 km/h SouthwestPartly Cloudy
6am62°F17°C9 mph15 km/h SouthMostly Cloudy
7am64°F18°C10 mph16 km/h SouthMostly Cloudy
8am66°F19°C9 mph15 km/h SouthMostly Cloudy
DateLowHighWindDayNight
September 153°F12°C66°F19°C9 mph14 km/h from SouthDrizzleRain
September 256°F14°C66°F19°C14 mph23 km/h from SouthwestRainPartly Cloudy
September 353°F12°C64°F18°C9 mph15 km/h from SouthwestRainClear
September 449°F9°C67°F20°C8 mph12 km/h from SouthwestPartly CloudyMostly Cloudy
September 552°F11°C70°F21°C10 mph16 km/h from SouthMostly CloudyCloudy
September 658°F15°C68°F20°C11 mph19 km/h from SouthDrizzleDrizzle
September 753°F12°C68°F20°C13 mph21 km/h from SouthPartly CloudyMostly Clear

Yes

Low of 56°F14°C, High of 66°F19°C
Wind: 14 mph23 km/h
Precipitation: 81% rain

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