By Bradley Jolly Temperatures are set to plummet to just above freezing across the UK on the weekend as winter finally grips again. The Met Office says although the weather will become drier over the next few days, it’ll get significantly colder. Temperatures on Sunday will struggle to exceed freezing, especially across Scotland and northern England. Weather maps show the mercury will barely hit 1C across South Lanarkshire and Scottish Borders even at midday. The temperature will could drop to -1C in rural spots in Aberdeenshire and Scottish Highlands later in the afternoon, forecasters believ…