Yes

you do need a jacket based on the weather in Highams Park, London, UK 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
44°F7°C & Cloudy

Wind is 4 mph6 km/h from the West, gusting to 8 mph13 km/h
January 14
6pm45°F7°C4 mph6 km/h WestCloudy
7pm44°F7°C4 mph6 km/h WestCloudy
8pm44°F7°C4 mph6 km/h WestCloudy
9pm45°F7°C4 mph6 km/h WestCloudy
10pm44°F7°C3 mph5 km/h WestMostly Cloudy
11pm44°F7°C2 mph4 km/h WestMostly Cloudy
January 15
12am44°F7°C2 mph4 km/h WestMostly Cloudy
1am44°F7°C3 mph4 km/h WestCloudy
2am44°F7°C3 mph5 km/h WestCloudy
3am44°F6°C3 mph5 km/h WestCloudy
4am43°F6°C3 mph5 km/h WestCloudy
5am45°F7°C3 mph4 km/h WestCloudy
DateLowHighWindDayNight
January 1339°F4°C51°F10°C2 mph3 km/h from WestMostly CloudyCloudy
January 1443°F6°C49°F9°C3 mph4 km/h from WestMostly CloudyMostly Cloudy
January 1539°F4°C47°F8°C4 mph7 km/h from SouthMostly CloudyPartly Cloudy
January 1636°F2°C44°F7°C4 mph6 km/h from SouthPartly CloudyPartly Cloudy
January 1734°F1°C40°F4°C4 mph6 km/h from SoutheastMostly CloudyMostly Cloudy
January 1833°F1°C42°F6°C4 mph6 km/h from SouthMostly CloudyMostly Cloudy
January 1937°F3°C45°F7°C5 mph8 km/h from SouthwestCloudyCloudy

Yes

Low of 44°F7°C, High of 49°F10°C
Wind: 3 mph4 km/h
Precipitation: None

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