A bitterly cold weather front from Siberia is set to bring snow, ice and temperatures as low as -10C across the UK from Monday.
The "Beast from the East" has prompted bookmaker William Hill to slash odds on the lowest ever temperature recorded from 14/1 to 8/1, reports the Belfast Telegraph.
Much of the UK will see snow as temperatures struggle to reach more than two or three degrees.
Tuesday and Wednesday nights could see temperatures as low as -10C in the Scottish highlands, with -7C widespread across the UK.
Icy winds could bring a chill factor of -16C.
Snow is expected to spread south during the week, reaching Kent, Suffolk and Essex by Wednesday, reports the Telegraph.
The AA has warned motorists of treacherous conditions as grit is ineffective below -9C.
Much of Britain has already seen sub-zero temperatures in the past week with a the low of -12.9C recorded in Braemar, Aberdeenshire.