When is it going to snow in UK? Is it going to snow this week, will there be snowfall in London - regions that could be affected today and tomorrow
Snow is possible in some parts of the country today.
Inverness, Newcastle, and York were among the cities where it went as low as 1C (33F) in the early hours, but it also dropped that low as far south as Southampton, according to the Met Office. It's expected to get even colder throughout this week during the first cold snap of the year.
Multiple yellow weather warnings for snow and ice have been issued by the Met Office for parts of Scotland and northern England until Thursday, while the UK Health Security Agency has issued an amber cold health alert for the North East, North West and Yorkshire and the Humber until Friday. A yellow cold health alert affects the rest of England, with the cold air having made its way over from Siberia.
While it's set to be wet in Scotland, Northern Ireland, and northern and western parts of England and Wales today, the Met Office said there would be some sleet and snow mixed in. Icy patches are also something to be wary of where it's coldest, making for "difficult, slippery conditions", warned meteorologist Alex Burkill.
When and where to expect snow
Snow is most likely in northern and eastern parts of Scotland, and the eastern side of England, Mr Burkill said. More is expected on Wednesday and Thursday. While it will be colder than normal for this time of year in the South, snowfall is unlikely.
But stronger winds toward the end of the week will bring significant windchill, making it feel much colder than even the low temperatures would suggest. Milder conditions should move in by the weekend.