Yes

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

Why? Because the drizzle is not enough rain to call it "raining," but enough to make you a little soggy and you're not freezing, but you’ll definitely start complaining if it lasts much longer!
40°F4°C & Drizzle

Wind is 4 mph7 km/h from the Southwest, gusting to 12 mph20 km/h
December 13
6pm40°F4°C5 mph8 km/h WestCloudy
7pm40°F4°C5 mph9 km/h WestCloudy
8pm40°F4°C5 mph9 km/h WestCloudy
9pm40°F5°C6 mph10 km/h WestCloudy
10pm41°F5°C7 mph11 km/h NorthwestCloudy
11pm40°F4°C7 mph11 km/h NorthwestCloudy
December 14
12am39°F4°C6 mph9 km/h NorthwestCloudy
1am38°F3°C5 mph9 km/h NorthwestMostly Cloudy
2am37°F3°C5 mph8 km/h WestPartly Cloudy
3am36°F2°C5 mph8 km/h WestMostly Clear
4am36°F2°C5 mph8 km/h WestPartly Cloudy
5am38°F3°C6 mph10 km/h WestMostly Clear
DateLowHighWindDayNight
December 1240°F4°C43°F6°C2 mph3 km/h from NorthwestCloudyCloudy
December 1336°F2°C45°F7°C8 mph13 km/h from WestMostly CloudyDrizzle
December 1445°F7°C52°F11°C17 mph27 km/h from WestDrizzleDrizzle
December 1545°F7°C50°F10°C17 mph27 km/h from WestWindyCloudy
December 1643°F6°C49°F9°C12 mph19 km/h from SouthRainRain
December 1745°F7°C55°F13°C16 mph26 km/h from SouthwestRainRain
December 1837°F3°C45°F7°C14 mph23 km/h from WestDrizzlePartly Cloudy

Yes

Low of 36°F2°C, High of 46°F8°C
Wind: 8 mph13 km/h
Precipitation: None

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