Road warning to motorists in rural Surrey
Surrey Police have urged motorists to take extra care especially in rural areas because of icy conditions.
The force said all main routes in the county were open but there were patches of black ice in places.
Train passengers have been warned to expect delays as rail services continue to be affected by the wintry weather.
Southern Railway said it would be running a reduced timetable on Saturday. South West Trains said some services would be limited.
Ch Supt Charlie Doyle, of Surrey Police, said: "Conditions across the county remain difficult and we would remind people to take extra care if they have to travel."
Southern Railway said there were no trains to Epsom Downs, Tattenham Corner, Caterham, Reigate and Tonbridge.
The firm said there were also no services west of Chichester, east of Hastings or south of Oxted.
Andy Pitt, managing director of South West Trains, said: "We have put in place a revised timetable for Saturday to ensure we can make the best use of the resources we have available.
"On Sunday we plan to operate services as normal with some minor alterations.
"However, our advice to passengers is that they should continue to check for updates before they travel and allow longer for their journeys."
The UK has been experiencing the earliest widespread snowfall since 1993.
The Met Office said there could be outbreaks of rain, sleet or snow during the day.