Brits face temperatures plunging to -10C this morning, with Arctic winds bringing ice and snow before milder weather sweeps in mid-week.
There has been a north-south divide over the New Year weekend, with it being bitterly cold in Scotland while elsewhere there has been heavy rain but milder temperatures.
It will be a freezing start to northern parts of the UK on Monday morning where it could drop to at least -10C, while it will be cold up and down the country.
An icy chill will remain in the air through Tuesday before the mercury starts to rise, if only briefly.
The Met Office has yellow warnings in place for ice across Scotland, Northern Ireland and northern England that will run until 11am on Monday.
People have been warned to expect: “Some injuries from slips and falls on icy surfaces. Probably some icy patches on some untreated roads, pavements and cycle paths.”
Maps from WXCharts show temperatures hitting -10C and up to 13 centimetres of snow for Scotland while Met Office forecaster Alex Burkill said that the mercury could fall several degrees below -8C.
"At the moment the jet stream is still running across the UK but as we head into Bank Holiday Monday it’s going to clear away towards the southeast and that will allow for some colder air to push in from the north and will also lead to a ridge of high pressure building which is why the weather is going to turn a little bit calmer, albeit for a just a short period of time,” he said.
"Clear skies as we go through the night. As a result under those clear skies it will turn a little chilly particularly across parts of Wales, southwest England, West Midlands, here there is the risk of a touch of frost but it is further north where we are going to see the lowest temperatures.
"Across parts of Scotland it could get as low as -7C, -8C maybe even a few degrees colder than that where there’s any lying snow."
Looking into midweek and weather systems are looking to push in which will bring heavy rain and strong winds but milder temperatures.
UK 5 day weather forecast
Today:
Many areas dry with some sunshine and lighter winds, offsetting somewhat lower temperatures. However there may be early showers in some exposed western, and possibly far southeastern, parts. Showers more widespread and heavier in west and northwest Scotland by afternoon.
Tonight:
Many parts starting clear with frost developing and some fog in eastern areas. Increasing cloud and wind should lift temperatures in most southern and western areas later, rain following eastwards.
Tuesday:
Rain continues eastwards, preceded by hill snow across Scotland. A brief drier gap, ahead of further wet, windy weather moving northeastwards. Turning windy with coastal gales but noticeably milder.
Outlook for Wednesday to Friday:
Cloud and rain clearing to blustery showers from west on Wednesday. Further rain through Thursday, initially central/northern areas, sinking south. Becoming more settled on Friday as rain clears east. Mild.
