Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
53°F11°C & Mostly Clear

Wind is 7 mph11 km/h from the West, gusting to 10 mph16 km/h
November 8
8am53°F12°C7 mph12 km/h WestClear
9am54°F12°C9 mph14 km/h WestClear
10am55°F13°C10 mph17 km/h WestMostly Clear
11am56°F13°C10 mph17 km/h WestMostly Clear
12pm57°F14°C10 mph17 km/h WestMostly Clear
1pm58°F14°C10 mph16 km/h WestMostly Clear
2pm58°F14°C9 mph15 km/h WestMostly Clear
3pm58°F14°C9 mph14 km/h WestMostly Clear
4pm57°F14°C9 mph14 km/h WestPartly Cloudy
5pm56°F13°C8 mph13 km/h WestPartly Cloudy
6pm55°F13°C8 mph13 km/h WestPartly Cloudy
7pm55°F13°C8 mph13 km/h WestMostly Cloudy
DateLowHighWindDayNight
November 852°F11°C58°F14°C9 mph14 km/h from WestMostly ClearPartly Cloudy
November 954°F12°C59°F15°C19 mph31 km/h from SouthRainRain
November 1052°F11°C56°F14°C16 mph26 km/h from SouthwestRainMostly Cloudy
November 1152°F11°C59°F15°C21 mph35 km/h from SouthDrizzleRain
November 1256°F13°C58°F15°C17 mph28 km/h from SouthRainDrizzle
November 1355°F13°C59°F15°C12 mph19 km/h from SoutheastDrizzleDrizzle
November 1455°F13°C58°F15°C11 mph18 km/h from SouthCloudyMostly Cloudy

Yes

Low of 54°F12°C, High of 59°F15°C
Wind: 19 mph31 km/h
Precipitation: 76% rain

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