Yes

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

Why? Because there are strong winds blowing out there!
71°F22°C & Cloudy

Wind is 13 mph21 km/h from the Southwest, gusting to 26 mph42 km/h
September 7
1pm70°F21°C12 mph20 km/h SouthwestMostly Cloudy
2pm68°F20°C11 mph18 km/h SouthwestMostly Cloudy
3pm66°F19°C10 mph16 km/h SouthwestPartly Cloudy
4pm64°F18°C9 mph14 km/h SouthwestMostly Clear
5pm62°F17°C8 mph13 km/h SouthwestPartly Cloudy
6pm60°F16°C7 mph11 km/h SouthwestMostly Cloudy
7pm59°F15°C6 mph10 km/h SouthwestMostly Cloudy
8pm58°F15°C5 mph9 km/h SouthwestPartly Cloudy
9pm58°F14°C5 mph8 km/h SouthwestMostly Clear
10pm57°F14°C4 mph7 km/h SouthwestPartly Cloudy
11pm56°F13°C4 mph7 km/h SouthwestMostly Clear
September 8
12am55°F13°C4 mph6 km/h SouthwestMostly Clear
DateLowHighWindDayNight
September 658°F14°C75°F24°C11 mph17 km/h from SouthMostly CloudyPartly Cloudy
September 754°F12°C67°F20°C9 mph14 km/h from SouthwestMostly ClearPartly Cloudy
September 850°F10°C67°F19°C7 mph11 km/h from SouthPartly CloudyPartly Cloudy
September 953°F11°C65°F19°C12 mph20 km/h from SouthPartly CloudyRain
September 1052°F11°C63°F17°C14 mph22 km/h from SouthwestDrizzleDrizzle
September 1149°F9°C62°F17°C13 mph21 km/h from SouthwestDrizzlePartly Cloudy
September 1249°F9°C61°F16°C13 mph20 km/h from SouthwestRainRain

Yes

Low of 54°F12°C, High of 67°F20°C
Wind: 9 mph14 km/h
Precipitation: 6% rain

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