NEW Year's Eve revellers have been warned to brace for plummeting temperatures - as the Met Office issues a yellow weather warning.
Partygoers may have to hit the town with their coats on to see in 2025 as figures are forecast to drop as low as -2C.
The Met Office has also issued a fresh yellow weather warning for rain which comes into force from midnight on Monday.
It ends as the bells strike midnight on New Year's Eve and covers the whole of Scotland.
Those affected can expect "heavy rain" that "may bring significant disruption in the build up to New Year.
There will be a small chance of power cuts and flooding, while public transport could also see delays.
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Drivers have been warned of difficult driving condition and possible road closures too.
"There is a small chance of fast flowing or deep floodwater causing danger to life," the agency added.
Meanwhile, bone-chilling -2C temperatures are predicted in northern Scotland, but much of the country is set to remain just above freezing.
Elsewhere, Met Office meteorologists forecast the north of England and Midlands will hover at around 4C.
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There are highs of 9C expected along the southwest coast of England and Wales as the bells bring us into the new year.
Meanwhile most of England will remain a few degrees cooler at around 7C.
And in Northern Ireland, revellers can expect average temperatures of 6C.
Met Office meteorologist Tom Morgan said: "Not a lot changes through the rest of this week and indeed this weekend, but as we move towards the New Year, we could see a change to cooler conditions and wetter conditions more widely.
"There could be some heavy rain at times and there is an increasing chance of some snow - but it's too early to say where that snow is going to fall."
Last year, New Year's Eve partygoers hit the town despite weather alerts and galeforce gusts.
Boozy Brits didn't let stormy conditions and Met Office yellow weather warnings put a dampener on festivities.
Met Office maps have also revealed the exact moment snow is set to settle over parts of the UK.
The first snowflakes are set to hit northern Scotland on Monday December 30 at 6pm.
It will continue to get heavier as the evening progresses, with hail also sweeping in the batter the country.
By midnight there will be up to four millimetres per hour falling across northern Scotland and the Scottish Highlands.
There are hail storms and torrential rain predicted in Fort William surrounding areas, reaching their peak at around 3am.
Today's forecast showed a misty and mild morning for much of the UK.
There are some sunny spells predicted in between cloud cover in Scotland and Northern Ireland this afternoon.
Fog is expected to roll in from around 6pm across the Midlands and Wales.
Temperatures will reach highs of 10C in Glasgow, and lows of 3C in the north of England.
FIVE DAY FORECAST
The Met Office five day forecast;
Today:
Cloudy for most with mist and fog patches in England and Wales persisting all day in places. Rain across parts of Scotland and Northern Ireland. Brighter and chilly in the far northwest with isolated showers.
Tonight:
Thick cloud continues for much of the UK, with mist and fog lingering in England and Wales. Patchy rain across Scotland and Northern Ireland, but drier in the far northwest.
Saturday:
A cloudy and murky start in England and Wales, with rain in the northwest slowly clearing southeastwards through Saturday, with sunny spells and blustery showers following behind.
Outlook for Sunday to Tuesday:
Turning brighter, but colder, with blustery showers, and later rain and hill snow, in north as we go into the new week.
This comes after Brits experienced a seasonable mild Christmas and Boxing Day this year.
Scotland and Northern Ireland hovered at around 10C yesterday.
And the afternoon saw highs of 10C on the south west coast of England in areas such as Plymouth.
Elsewhere, much of England and Wales felt temperatures of around 8C or 9C, while the Midlands were predicted lows of 6C.
Brits also woke up to what has been called a "green Christmas" on December 25.
Forecasters said the "exceptionally mild" temperatures seen on Christmas Eve will likely continue until closer to the new year.
Mr Morgan said: "So great news if you do have travel plans over the next few days, no weather warnings are expected, no disruptive weather - but, as I say, not great news if you want a festive feel and certainly no snow or frost on the way.
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"Christmas Eve has been very mild - we haven't broken any records, but we did see a high temperature today of 14.8C in Aberdeen, which is exceptionally mild for Christmas Eve.
"It's going to stay very similar through the Christmas period, so Christmas Day will dawn cloudy and very mild once again."
LONG RANGE FORECAST
The Met Office long range forecast;
Tuesday Dec 31- Thursday Jan 9
A Met Office spokesperson said: "An erratic change from the mild and largely settled conditions of the past few days is expected.
"Rain, stronger winds and some snow already across Scotland may on Tuesday become more severe and start to push southwards through the middle part of next week, bringing a chance of snow to other parts of the UK, along with colder conditions more widely.
"A period of more settled weather then seems probable later next week, with a gradual recovery in temperatures to nearer average for the time of year, perhaps even mild.
"Beyond this, a fairly changeable picture is most likely although confidence in details is, as usual at this range, very low.
"Wettest/windiest weather in the north and west, whilst the south and east will probably remain more settled overall."