Scotland, the far north of England and Northern Ireland are the areas most likely to see snowfall to usher in the festive celebrations, particularly on higher ground
Brits will wake up to a blanket of snow in time for a white Christmas this year, but forecasters predict not everyone will get to enjoy the snowfall.
The Met Office says that while forecasts remain uncertain northern parts of the country could be in store for a snowy December 25.
Scotland, the far north of England and Northern Ireland are the areas most likely to see snowfall to usher in the festive celebrations, particularly on higher ground.
But exactly where the boundary between cold and milder air will be – and therefore which areas might see snow – is still unclear, the Met Office said.
Helen Caughey, deputy chief meteorologist at the Met Office, said: “With colder air meeting milder air over the UK, the specific details of the forecast for Christmas Day are still a little uncertain.
“Milder air moves north-east over much of the country by the middle of the week, with spells of rain for most at times, which will turn to snow over higher ground in northern Scotland initially.
“The boundary between the milder and colder air is then forecast to sink south later on Christmas Eve and through Christmas Day, introducing colder, clearer conditions for some.
“However exactly where this boundary gets to is hard to pin down at the moment, and is key as to where can expect any snow over Christmas.”
Conditions are forecast to become more unsettled from Wednesday, with bands of rain expected across the UK.
Sleet, snow and ice are predicted over higher ground in Scotland on Wednesday and snow is expected on Thursday.
Blizzards could be in store in Scotland on Christmas Eve thanks to strong winds, while areas further south are expected to remain mild and cloudy with some rain.
There is also the risk of fog across southern parts of England and Wales on Christmas Eve, which could affect travel.
UK Weather Forecast
Generally cloudy and cold but mostly dry. Perhaps a few sunnier spells developing by day over England but more generally arriving in the south and southeast later. Windy in the far southwest.
Mostly cloudy for Northern Ireland and Scotland but cloud gradually breaking for much of England and Wales leading to a cold and frosty night for many.
Bright start in east but cloud spreading across the country from the west. Rain arriving into Northern Ireland by lunchtime then spreading across Scotland, then Wales and northwest England later.
Outlook for Thursday to Saturday:
Unsettled; bands of rain affecting most areas, these turning to snow in parts of the north. Windy, with a risk of gales Friday and Saturday. Mild start, colder later.