Yes

you do need a jacket based on the weather in Hornsey Rd, London N7 7AJ, UK 1 second ago

Why? Because some drizzle out there!
69°F21°C & Drizzle

Wind is 6 mph10 km/h from the East, gusting to 16 mph26 km/h
August 11
7pm69°F21°C6 mph10 km/h EastDrizzle
8pm68°F20°C7 mph11 km/h EastCloudy
9pm67°F20°C6 mph10 km/h EastCloudy
10pm67°F19°C6 mph10 km/h EastCloudy
11pm66°F19°C5 mph9 km/h NortheastMostly Cloudy
August 12
12am66°F19°C5 mph8 km/h NortheastPartly Cloudy
1am66°F19°C5 mph8 km/h NortheastMostly Clear
2am67°F19°C5 mph8 km/h NortheastPartly Cloudy
3am69°F21°C6 mph10 km/h EastMostly Clear
4am73°F23°C7 mph11 km/h EastMostly Clear
5am77°F25°C7 mph12 km/h EastMostly Clear
6am80°F27°C8 mph13 km/h EastMostly Clear
DateLowHighWindDayNight
August 1059°F15°C86°F30°C3 mph5 km/h from EastPartly CloudyDrizzle
August 1165°F19°C87°F31°C8 mph12 km/h from EastMostly ClearClear
August 1263°F17°C83°F28°C6 mph10 km/h from SouthCloudyMostly Cloudy
August 1362°F16°C81°F27°C7 mph11 km/h from WestPartly CloudyMostly Clear
August 1463°F17°C83°F28°C5 mph8 km/h from NorthClearMostly Clear
August 1561°F16°C79°F26°C8 mph12 km/h from NortheastMostly ClearMostly Clear
August 1657°F14°C76°F24°C8 mph13 km/h from NortheastMostly ClearPartly Cloudy

No

Low of 65°F19°C, High of 88°F31°C
Wind: 8 mph12 km/h
Precipitation: None

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