Yes

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

Why? Because it's cold. simple as that.
49°F9°C & Partly Cloudy

Wind is 8 mph13 km/h from the N, gusting to 11 mph18 km/h
April 25
2pm49°F9°C8 mph13 km/h NDrizzle
3pm48°F9°C8 mph12 km/h NPartly Cloudy
4pm46°F8°C7 mph11 km/h EPartly Cloudy
5pm44°F7°C7 mph12 km/h EMostly Clear
6pm43°F6°C8 mph12 km/h EMostly Clear
7pm41°F5°C7 mph11 km/h EMostly Clear
8pm40°F4°C6 mph10 km/h NEMostly Clear
9pm39°F4°C6 mph10 km/h NEMostly Clear
10pm38°F3°C6 mph10 km/h NEClear
11pm38°F3°C6 mph10 km/h NEClear
April 26
12am37°F3°C7 mph11 km/h NEMostly Clear
1am37°F3°C7 mph11 km/h NEMostly Clear
DateLowHighWindDayNight
April 2441°F5°C50°F10°C10 mph16 km/h from NWDrizzleDrizzle
April 2537°F3°C50°F10°C6 mph10 km/h from NEPartly CloudyPartly Cloudy
April 2638°F3°C53°F11°C9 mph14 km/h from NEMostly CloudyMostly Cloudy
April 2742°F5°C52°F11°C12 mph19 km/h from NWPartly CloudyPartly Cloudy
April 2844°F6°C58°F15°C16 mph26 km/h from SWindyWindy
April 2947°F8°C61°F16°C13 mph21 km/h from SEMostly CloudyDrizzle
April 3051°F11°C62°F17°C8 mph13 km/h from NECloudyPartly Cloudy

Yes

Low of 37°F3°C, High of 50°F10°C
Wind: 6 mph10 km/h
Precipitation: 28% rain

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