Yes

you do need a jacket based on the weather in Chepstow NP16, UK 1 second ago

Why? Because the air feels like the cozy middle ground between summer and winter!
58°F14°C & Mostly Cloudy

Wind is 6 mph9 km/h from the West, gusting to 8 mph13 km/h
August 2
8pm58°F14°C6 mph9 km/h WestMostly Cloudy
9pm57°F14°C5 mph9 km/h WestPartly Cloudy
10pm56°F13°C5 mph8 km/h WestMostly Cloudy
11pm56°F13°C5 mph8 km/h SouthwestCloudy
August 3
12am57°F14°C5 mph8 km/h SouthwestCloudy
1am58°F14°C5 mph8 km/h SouthwestCloudy
2am60°F16°C6 mph9 km/h SouthwestCloudy
3am63°F17°C8 mph13 km/h SouthwestCloudy
4am67°F19°C10 mph17 km/h SouthwestCloudy
5am68°F20°C12 mph19 km/h SouthwestCloudy
6am70°F21°C14 mph22 km/h WestCloudy
7am70°F21°C14 mph22 km/h WestCloudy
DateLowHighWindDayNight
August 256°F13°C75°F24°C11 mph18 km/h from WestCloudyCloudy
August 358°F14°C71°F22°C17 mph28 km/h from SouthwestDrizzleMostly Clear
August 453°F12°C69°F21°C14 mph23 km/h from NorthwestPartly CloudyPartly Cloudy
August 551°F11°C71°F21°C7 mph11 km/h from SouthwestMostly CloudyMostly Cloudy
August 658°F14°C71°F22°C15 mph25 km/h from SouthwestWindyPartly Cloudy
August 756°F13°C69°F20°C15 mph24 km/h from WestWindyPartly Cloudy
August 857°F14°C70°F21°C12 mph19 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 58°F15°C, High of 72°F22°C
Wind: 17 mph28 km/h
Precipitation: 45% rain

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