Artic air is set to sweep across the UK tonight as forecasters warn it will be the coldest night of the Autumn so far, with widespread frost set to cover and freeze the whole of the UK.
Temperatures are expected to plummet to as low as -10C for some in Scotland.
Rural parts of England and wales could see temperatures drop to -6C.
Town and cities will also see a hard frost with temperatures dropping to a chilling -1C to -3C.
The Met office has also issued an early yellow warning for Freezing Fog which is expected to hit parts of England from 4am to 11am.
The worst affected areas include the midlands, home countries and southeast of England.