Yes

you do need a jacket based on the weather in (Streatham), England, United Kingdom 1 second ago

Why? Because the wind is offering free, unsolicited face massages!
68°F20°C & Mostly Cloudy

Wind is 11 mph18 km/h from the Southwest, gusting to 24 mph39 km/h
September 18
2pm67°F19°C11 mph18 km/h SouthwestMostly Cloudy
3pm65°F19°C10 mph17 km/h SouthwestMostly Cloudy
4pm64°F18°C10 mph16 km/h SouthwestMostly Cloudy
5pm64°F18°C9 mph15 km/h SouthwestCloudy
6pm63°F17°C9 mph15 km/h SouthwestMostly Cloudy
7pm63°F17°C9 mph14 km/h SouthwestMostly Cloudy
8pm62°F17°C8 mph13 km/h SouthwestMostly Cloudy
9pm62°F17°C7 mph11 km/h SouthwestMostly Cloudy
10pm62°F16°C6 mph10 km/h SouthwestMostly Cloudy
11pm61°F16°C5 mph9 km/h SouthMostly Cloudy
September 19
12am61°F16°C5 mph8 km/h SouthCloudy
1am61°F16°C4 mph7 km/h SouthMostly Cloudy
DateLowHighWindDayNight
September 1763°F17°C70°F21°C10 mph15 km/h from SouthwestMostly CloudyMostly Cloudy
September 1861°F16°C77°F25°C7 mph12 km/h from SouthPartly CloudyPartly Cloudy
September 1955°F13°C71°F22°C10 mph17 km/h from SouthwestDrizzlePartly Cloudy
September 2050°F10°C60°F15°C10 mph16 km/h from NorthwestDrizzlePartly Cloudy
September 2147°F8°C60°F15°C11 mph18 km/h from NorthDrizzleClear
September 2243°F6°C60°F15°C7 mph12 km/h from NorthPartly CloudyPartly Cloudy
September 2347°F8°C62°F16°C8 mph13 km/h from NortheastMostly CloudyMostly Cloudy

No

Low of 61°F16°C, High of 77°F25°C
Wind: 7 mph12 km/h
Precipitation: None

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