Frost and fog are expected to pose a hazard to parts of the country for the next few days.
The Met Office, which has urged everyone to ‘pack hot water bottles as the night will be cold and freezing’, issued a yellow weather warning for fog on Friday and Saturday – which could disrupt travel.
People in the East Midlands, East of England, North East, Wales as well as Yorkshire and the Humber have been told to prepare for thick fog and freezing temperatures.
With fog patches expected to spread overnight, the warning says “dense fog patches are possible, with visibilities possibly falling to 50-100m in some places”.
The biggest patches of fog are likely to be in east Wales, up to the Midlands and east of England, according to forecaster Greg Dewhurst who added that they “will also be in the rest of the country too, but it may not be as dense or as widespread”.
Warning people to be careful if they are on the move, he said: ‘If they get up early and until Saturday morning, if they are traveling or walking around, there will be dense patches of fog around.
“Be careful when driving as visibility on the roads will be reduced and you may not be able to see very far ahead.”
Patches of mist and fog were lucky to form as light winds and high pressure across the UK means the air is not moving very quickly.
Mr Dewhurst said: ‘They will usually be slow to clear as the sun is not very strong at this time of year.’
Poor visibility could lead to hazardous driving conditions in some areas, slower journey times for road journeys and possible delays to bus and train services.
Temperatures are expected to drop to -5C in some rural areas of England and Wales, while regions further north and far west will remain above freezing due to the increased cloud cover.
It will be a cold start with frost early on Saturday, before it turns into a dry and cloudy day.
Midlands chill sees -2C overnight with temperatures down to 0C-5C elsewhere. Later temperatures will struggle during the cold spell and a high figure of around 10C is expected in the South West of England.