Yes

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

Why? Because the wind is harsh and biting!
62°F17°C & Cloudy

Wind is 11 mph17 km/h from the South, gusting to 19 mph31 km/h
September 14
9am62°F17°C11 mph18 km/h SouthDrizzle
10am62°F17°C12 mph19 km/h SouthDrizzle
11am62°F17°C13 mph21 km/h SouthDrizzle
12pm63°F17°C14 mph23 km/h SouthDrizzle
1pm64°F18°C14 mph23 km/h SouthRain
2pm65°F18°C15 mph23 km/h SouthwestRain
3pm65°F18°C16 mph26 km/h SouthwestDrizzle
4pm64°F18°C16 mph26 km/h SouthwestDrizzle
5pm64°F18°C16 mph26 km/h SouthwestWindy
6pm61°F16°C16 mph25 km/h SouthwestWindy
7pm60°F16°C16 mph25 km/h SouthwestWindy
8pm59°F15°C16 mph25 km/h SouthwestWindy
DateLowHighWindDayNight
September 1346°F8°C65°F18°C8 mph13 km/h from SouthRainRain
September 1456°F13°C64°F18°C19 mph31 km/h from SouthwestDrizzleMostly Clear
September 1553°F12°C65°F18°C12 mph20 km/h from WestMostly CloudyRain
September 1655°F13°C71°F22°C14 mph23 km/h from SouthwestRainDrizzle
September 1759°F15°C70°F21°C10 mph16 km/h from SouthwestMostly CloudyMostly Cloudy
September 1859°F15°C71°F22°C8 mph13 km/h from SouthMostly CloudyMostly Cloudy
September 1958°F14°C70°F21°C11 mph17 km/h from SouthwestDrizzleDrizzle

Yes

Low of 56°F14°C, High of 64°F18°C
Wind: 19 mph31 km/h
Precipitation: 38% rain

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