The Met Office said the country would become colder, more cloudy and more volatile by Monday. Daytime temperatures will drop by half from last week’s highs and will drop below zero at night as the cold front pushes down from the north. It comes after many areas with glorious sunshine and high temperatures of 20C (68F) last week. Picture: Just this weekend the weather was good enough to swim in the sea Alex Burkill, a Met Office forecaster, said Wednesday would be “the most extreme of winter weather” due to a cold south wind. “It will be much colder than what we just saw, the daytime temperatures will drop by half and some areas will find it difficult to even reach 8 degrees Celsius (46.4 F), which will mean the biggest change in conditions.” , he said. “On Thursday and Friday night, many areas will fall significantly lower than the frost, to minus 4C (24.8F) and minus 5C (23F).” The parts of the UK most affected will be North England, North Wales and Central England, but winter weather could further push southern England and Wales.