All of Britain is set to freeze as the weather turns colder this week, with forecasters warning that temperatures will be dropping as low as -10C.
Meteorologist Craig Snell said that starting this evening, the weather will be turning much colder all across the UK.
Snow showers could blanket Scotland as early as this evening, with the main focus of the risk of sleet and ice covering northern areas of the country, he added.
On Tuesday night, the mercury might drop to -10C across the Glens of Scotland, the meteorologist explained.
Mr Snell said southern parts of the country might see some snowflakes too but at the moment the Met Office has not confirmed yet whether any significant snowfall is likely.
The forecaster told the Mirror: "Temperature-wise, it will be turning much colder at night especially in the north of the UK.
"By the middle of the week, we certainly will be looking at temperatures in a few spots in the Glens of Scotland down to about -10C, so feeling cold."
He said temperatures will be as cold as they were in mid-January - meaning that next week is likely to be the coldest the country has experienced in the past two months.
Further south, widespread frost is likely but it will not feel as cold as Scotland, Mr Snell explained.
The meteorologist said: "It's certainly a wintry week ahead."
A yellow warning for snow is in force across northeast Scotland and the Shetland Islands from 6pm until midnight today.
Forecasters said some roads and railways are likely to be affected, with journeys taking longer than usual.
The Met Office also issued a yellow warning for snow and ice across northern England and Scotland for Monday, warning that snow showers are likely to cause disruption.
A warning is also in force on Tuesday as meteorologists said frequent snow showers will continue in the area, with a risk of injuries from slips and falls on icy surfaces and a slight chance that some rural communities could become cut off.
Towards the end of next week, some parts of the south may start to feel a bit warmer as some bands of rain try to move in from the Atlantic, Mr Snell said.
However, in Scotland temperatures are set to remain cold for longer, the forecaster added.
The Met Office's long-range weather forecast from March 9 to March 18 says some "disruptive snowfall" could hit parts of central and southern England and Wales.
As the month goes on, temperatures may be turning a little milder but are likely to remain low average.
Towards the end of March and the beginning of April, it is likely that temperatures will fluctuate between cold and mild, north to south, but will probably average out around normal, the Met Office added.
UK 5 day weather forecast
Another rather cloudy day with some showers, possibly wintry over hills, although the cloud should break at times to allow a few bright or sunny intervals. More persistent rain in the far north.
Variable cloud and a few showers with patchy frost where clear spells occur. Band of cloud and rain across far north edging south, followed by snow and hail showers.
Rain moving south into central areas, some snow over high ground. Cold and windy with sunny intervals and snow and hail showers in north. Bright with scattered showers in south.
Outlook for Tuesday to Thursday:
Snow showers affecting the far north and east of the UK, elsewhere dry, sunny, with light winds. Slowly increasing chance of snow in the far south, cloudier here. Very cold.