Yes

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

Why? Because it's not very warm out.
52°F11°C & Cloudy

Wind is 9 mph14 km/h from the N, gusting to 19 mph30 km/h
April 23
10am52°F11°C9 mph15 km/h NDrizzle
11am52°F11°C10 mph16 km/h NCloudy
12pm51°F10°C11 mph17 km/h NMostly Cloudy
1pm49°F10°C11 mph17 km/h NMostly Cloudy
2pm48°F9°C10 mph16 km/h NMostly Cloudy
3pm46°F8°C9 mph14 km/h NMostly Cloudy
4pm45°F7°C7 mph12 km/h NMostly Cloudy
5pm43°F6°C6 mph9 km/h NPartly Cloudy
6pm42°F6°C5 mph8 km/h NWPartly Cloudy
7pm41°F5°C5 mph8 km/h NWPartly Cloudy
8pm41°F5°C6 mph9 km/h NWMostly Cloudy
9pm40°F5°C6 mph10 km/h NWMostly Cloudy
DateLowHighWindDayNight
April 2241°F5°C52°F11°C8 mph12 km/h from NDrizzleMostly Cloudy
April 2339°F4°C50°F10°C9 mph15 km/h from NMostly CloudyMostly Cloudy
April 2436°F2°C54°F12°C8 mph12 km/h from WMostly CloudyCloudy
April 2539°F4°C53°F12°C7 mph12 km/h from ECloudyDrizzle
April 2644°F7°C58°F14°C9 mph14 km/h from EDrizzleThunderstorms
April 2748°F9°C62°F16°C13 mph21 km/h from SWThunderstormsMostly Cloudy
April 2848°F9°C65°F18°C8 mph13 km/h from SPartly CloudyMostly Clear

Yes

Low of 39°F4°C, High of 50°F10°C
Wind: 9 mph15 km/h
Precipitation: None

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