Temperatures are set to plungeMore than 200 areas of the UK are set to see temperatures plummet below 10C on Sunday just days after millions basked in a heatwave. With the mercury reaching the mid-30s in the south east this week, many would expect the warm weather to continue into the weekend. There will be a lot of dry weather with some sunny spells, though one or two showers are also possible.” It’s forecast to be 9C or below in 29 Scots council areas, 15 Welsh, 9 Northern Irish, and 151 English. Here is a full list of every UK council area set to be below 10C on Sunday.