The Met Office has issued yellow weather warnings across the country as it reveals what areas may see snow this week.
Parts of south-west Scotland, southern Wales, south-west England and Northern Ireland have been hit with yellow warnings, as outbreaks of rain arrive on Tuesday morning.
Bands of heavy and persistent rain will be followed by cooler air moving in from the North, which will bring below freezing overnight temperatures to Scotland, with potential for some snow on higher ground.
Met Office chief forecaster Neil Armstrong said: “The UK is in for an unsettled week of weather, with frequent spells of heavy rain and at times strong, gusty winds.
“There will be spells of drier and brighter weather at times, and temperatures will begin to fall closer to average for the time of year from the north. We will see a return of below freezing temperatures in Scotland overnight, with even the chance of some snow over mountains on Wednesday night.”
The warnings are in place from Tuesday morning, with warnings issued in Wales and south-west England on Wednesday too.
Around 20 to 40mm of rain is expected in parts of south-west Scotland, accompanied by winds, which will strengthen along exposed coastlines, with gusts to gale force possible. The warning has been put in place from 10am on Tuesday until midnight.
England, Wales and Northern Ireland will continue to see precipitation falling as rain, according to the Met Office.
The weather warning in Devon and Cornwall is issued from midday Tuesday until 6pm on Wednesday, with heavy rain and southerly winds, and a 20 to 40mm downpour widely.
Meanwhile, around 30 to 50mm of rain could fall widely in southern Wales, where the warning is in place from 7am to midnight on Tuesday, and again on Wednesday, from 6am to midnight.
In Northern Ireland, the warning is in place from 6am to 9pm on Tuesday, with 20 to 30mm of rain expected to fall.
The Met Office has warned of delays to traffic and possible flooding and disruption across the regions affected.
Here is the weather forecast for the UK for the coming week, according to the Met Office:
Today
Rain will spread into the North and West through Tuesday, turning heavy at times, particularly in the West. Staying dry in the East but largely cloudy. Turning windy through the morning, but staying fairly mild.
Tonight
Outbreaks of rain will continue, gradually becoming less heavy overnight. Rain will also move into the East. Winds gradually easing. Chilly in the North, but mild in the South.
Wednesday
Further rain on Wednesday across parts of England and Wales, and northern Scotland. Some drier and brighter intervals in northern areas and later in the South East. Breezy.
Outlook for Thursday to Saturday
Turning colder in the north with overnight frosts. Outbreaks of heavy rain continuing in southern and central areas. Strong easterly winds developing.
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