orecasters have warned that “the coldest night of the season” will hit parts of the UK, with temperatures dropping to as low as minus 10C (14F).
The Met Office has said it expects to see mercury fall below zero in many parts of the country, including in cities like London, where it could be minus 2C (28.4F) in the late hours of Sunday.
It has also issued two yellow ice warnings – one across eastern Scotland and another stretching from north-east England down to the south coast – from Sunday afternoon.
The warnings, which are set to last until Monday morning, say people should expect to see “icy spots” on roads and sidewalks, meaning accidents and landslides and falls are “more likely”.
Many parts of the country fell below freezing to around minus 4C / minus 5C (24.8F / 23F) overnight, with Shap in Cumbria hitting minus 6.4C (20.5F).
It comes after storm Arwen wreaked havoc in large parts of Britain, causing strong winds, sleet and snow.
Met Office forecast chief Tom Morgan told the PA news agency: “When storm Arwen clears out to Europe, a cold north wind current has been left behind in the UK, causing some of the biting cold temperatures we have seen.
“It is set to get further winter weather on Sunday, with snow expected to fall over areas of Scotland and northern England, and even in parts of southern and central England.
“Parts of Scotland and the north of England where the snow is on the ground will be very cold again tonight, with temperatures definitely dropping below zero and even as low as minus 10C (14F), which would make it the coldest night on season until now.
“While this is expected to be the exception rather than the rule, temperatures below freezing will be widespread, including in London and the South East, which could hit minus 2C (28.4F).
“Even if you live in a city, you can expect to scrape frost, ice or even snow off your cars Monday morning.”
Morgan added that although frost will also be visible in Wales and Northern Ireland, temperatures there will not drop as low as England and Scotland.
A cold weather warning was issued by the British Health Safety Agency on Friday, which remained in place until Monday, advising people to try to stay warm and take care of those most exposed to the effects of the cool conditions, such as elderly and all with heart and lung problems.
Morgan said this was due to an “Arctic shot” which has been moving south over Britain.
The cold spell comes after three people were killed when trees were blown over by strong winds when storm Arwen hit Friday.
Wind gusts of almost 100 km / h also caused transport disruptions, power outages and damage to buildings, while heavy snow led to trucks getting stuck and plows being used in a number of areas.