Last night was officially the coldest night of the year so far with temperatures dropping as low as -11C in places, but forecasters warn that there may be more cold weather to come.
The Met Office has issued an amber warning for icy conditions across the country including the North, Midlands and East Anglia, until midday on Thursday and MeteoGroup have predicted there could be snow tomorrow or Wednesday.
A message on the Met Office website stated: "Large areas of England will experience colder than average conditions in the coming week, with widespread overnight frosts."
The coldest temperature measured last night was reportedly -11.2C at Loch Glascarnoch, in Scotland, which beats this year's previous record low of -9C on December 27, in Cromdale, Moray.
After a frosty start, it will be mostly dry and sunny although localised fog could persist in some areas.
Some coastal fringes will see cloud with further wintry showers, especially in north-eastern England, although these will gradually ease.
It will remain cold throughout and very cold across snow cover.
Tonight, the sleet and snow will gradually spread into Northern Ireland, and perhaps other far western parts by dawn.
It will be very cold with clear spells elsewhere, with a hard frost and localised fog.
A mixed picture of showers and clear skies across Britain this afternoon - but cold weather will be everywhere.Read the full story ›
Forecasters have warned of severe cold weather in parts of the country, with temperatures in some areas expected to fall as low as -15C tonight and early tomorrow.
The lowest temperatures are set to occur in Scotland, with lying snow, clear conditions and light winds contributing in southern, western and Highlands areas.
Sections of Northern Ireland are also expected to see temperatures fall as low as 7C-9C
The Met Office also predicted widespread frost and patches of freezing fog across much of the UK, with drives in particular warned to take extra care in icy conditions.
Another cold day everywhere, with highs of just 5C and sleet or wet snow in some parts of the country.Read the full story ›
The Met Office has warned of the impact of severe cold weather as temperatures fall before freezing across large parts of the UK.
Forecasters said the severe cold weather and icy conditions could increase health risks to vulnerable patients and disrupt services.
Parts of Mid Wales and the South Wales Valleys woke up to more snow and icy conditions today, after another night of wintry weather.
You've been sending us in your photographs.
It will be a mixture of sunny spells and showers for many today, with very cold temperatures - peaking at 5C.Read the full story ›
Heavy snow has caused has caused travel disruption on many routes across parts of Scotland.
Glasgow Airport warned of delays, while 26 gritters are worked through the night to keep major routes open.
Slippery scenes earlier tonight on High Street in Glasgow. Thanks to Rosaleen Hanlon for the pic. http://t.co/gHXROgfIZ2
Accident and emergency units in Wales had their busiest December for five years, figures released today reveal.
A total of 76,889 people visited A&E during the month - around 2.5 per cent more than last year and the highest number since 2009.
The figures reveal that 81 per cent of those who attended were seen and either admitted or discharged in under four hours.
Much of the additional pressure has been attributed to a significant rise in the most critically-ill patients calling the Welsh Ambulance Service, which reported "unprecedented" demand during the final weeks of the year.