Yes

you do need a jacket based on the weather in 48 Nursery Rd, Sunbury-on-Thames TW16 6LF, UK 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Mostly Cloudy

Wind is 6 mph9 km/h from the West, gusting to 11 mph17 km/h
November 8
11am55°F13°C6 mph10 km/h WestMostly Cloudy
12pm56°F14°C7 mph11 km/h WestMostly Cloudy
1pm57°F14°C7 mph11 km/h WestMostly Cloudy
2pm58°F15°C8 mph12 km/h WestMostly Cloudy
3pm59°F15°C7 mph11 km/h WestPartly Cloudy
4pm58°F14°C6 mph10 km/h WestPartly Cloudy
5pm55°F13°C5 mph9 km/h WestMostly Clear
6pm53°F12°C5 mph8 km/h WestClear
7pm51°F11°C4 mph7 km/h WestClear
8pm50°F10°C4 mph7 km/h WestClear
9pm49°F9°C4 mph6 km/h SouthwestClear
10pm48°F9°C4 mph6 km/h SouthwestMostly Clear
DateLowHighWindDayNight
November 846°F8°C59°F15°C6 mph9 km/h from WestMostly CloudyMostly Clear
November 944°F7°C58°F15°C8 mph13 km/h from SouthMostly CloudyDrizzle
November 1048°F9°C56°F13°C9 mph15 km/h from SouthDrizzleMostly Cloudy
November 1147°F8°C58°F15°C12 mph19 km/h from SouthCloudyRain
November 1253°F12°C58°F15°C12 mph19 km/h from SouthDrizzleDrizzle
November 1353°F12°C60°F16°C7 mph11 km/h from SouthRainRain
November 1453°F12°C59°F15°C7 mph11 km/h from SouthDrizzleDrizzle

Yes

Low of 44°F7°C, High of 58°F15°C
Wind: 8 mph13 km/h
Precipitation: None

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