Yes

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

Why? Because it's cool. Pleasantly cool, but cool and it's really really huffing out there!
55°F13°C & Windy

Wind is 19 mph31 km/h from the Northwest, gusting to 32 mph51 km/h
October 23
11am55°F13°C20 mph32 km/h NorthwestDrizzle
12pm55°F13°C21 mph34 km/h NorthwestDrizzle
1pm54°F12°C22 mph36 km/h NorthwestWindy
2pm53°F11°C25 mph40 km/h NorthwestWindy
3pm52°F11°C25 mph40 km/h NorthwestWindy
4pm51°F11°C22 mph36 km/h NorthwestWindy
5pm50°F10°C21 mph33 km/h NorthwestWindy
6pm49°F9°C19 mph30 km/h WestWindy
7pm48°F9°C18 mph29 km/h WestWindy
8pm48°F9°C19 mph31 km/h WestWindy
9pm47°F8°C19 mph30 km/h WestWindy
10pm47°F8°C18 mph30 km/h WestWindy
DateLowHighWindDayNight
October 2247°F8°C55°F13°C21 mph34 km/h from NorthwestDrizzleWindy
October 2347°F8°C56°F13°C22 mph35 km/h from WestDrizzleWindy
October 2445°F7°C54°F12°C16 mph26 km/h from NorthwestWindyMostly Clear
October 2542°F6°C54°F12°C16 mph26 km/h from NorthwestWindyWindy
October 2749°F9°C57°F14°C20 mph32 km/h from NorthwestWindyPartly Cloudy
October 2849°F10°C59°F15°C16 mph26 km/h from WestWindyMostly Cloudy
October 2950°F10°C58°F15°C11 mph18 km/h from SouthwestMostly CloudyMostly Cloudy

Yes

Low of 47°F9°C, High of 55°F13°C
Wind: 22 mph35 km/h
Precipitation: 36% rain

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