Yes

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

Why? Because it's not very warm out and it's so gusty, you’re basically doing accidental parkour!
58°F14°C & Clear

Wind is 14 mph22 km/h from the East, gusting to 24 mph39 km/h
April 5
9am59°F15°C14 mph22 km/h EastClear
10am59°F15°C14 mph22 km/h EastClear
11am60°F15°C14 mph22 km/h EastClear
12pm59°F15°C13 mph21 km/h EastClear
1pm58°F14°C12 mph19 km/h EastClear
2pm55°F13°C11 mph17 km/h EastClear
3pm51°F11°C10 mph16 km/h EastClear
4pm49°F9°C9 mph14 km/h EastClear
5pm46°F8°C8 mph13 km/h EastClear
6pm45°F7°C8 mph13 km/h EastClear
7pm44°F7°C8 mph13 km/h EastClear
8pm43°F6°C8 mph13 km/h EastClear
DateLowHighWindDayNight
April 441°F5°C60°F15°C11 mph18 km/h from EastClearClear
April 540°F4°C60°F16°C9 mph14 km/h from EastClearClear
April 635°F2°C60°F15°C3 mph4 km/h from SouthClearClear
April 739°F4°C60°F16°C4 mph6 km/h from NorthwestClearMostly Clear
April 838°F3°C59°F15°C5 mph8 km/h from NortheastClearClear
April 939°F4°C57°F14°C5 mph8 km/h from WestClearPartly Cloudy
April 1040°F4°C47°F8°C5 mph9 km/h from WestRainRain

Yes

Low of 40°F5°C, High of 60°F16°C
Wind: 9 mph14 km/h
Precipitation: None

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