Overnight it will turn icy as temperatures tumble. The mercury is set to fall as low as -10c in rural snow covered spots where the cloud breaks with freezing fog forming in the north and east by the early hours.
The east coast will see fog developing in the early hours.
A much brighter day is expected in many places tomorrow, but it will stay very cold throughout the day.
It is set to stay cold and frosty as the week continues. Staying icy and with more snow on the way until the weather changes at the weekend.
The weekend temperatures recover and a slow thaw.
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Most of the UK will have a mixture of sunny spells and scattered showers before becoming drier in the afternoon.