- 24 updates
These pictures of meerkats playing in the snow were taken at Drusillas Park in Alfriston, Sussex.
Heathrow Airport has already warned passengers to expect cancellations and delays today and Gatwick has also advertised delays on its website, due to the snow.
More than 200 flights were cancelled at Heathrow yesterday, while other airports including Gatwick experienced some disruption.
There's weather warnings this morning - for freezing fog and widespread icy roads - around East Sussex, Hampshire, Isle of Wight, Kent, Surrey and West Sussex.
There is also the possibility of further sleet and light snow showers throughout the day.
The snow was long predicted, and when it came, amounted to not much more than 2.5 inches. The Highways Authorities were ready with grit and salt, and all major roads and rail routes stayed open.
So the question so many parents have been asking today is why did so many schools have to close?
In East Sussex and Brighton 148 schools were shut, or partially shut. In Kent and Medway 228 were closed.
And as every parent knows, a child at home can mean a day off work, or the expense of childcare. John Ryall has our report.
Today's sub zero temperatures and the snow meant that across the rail network, trains were cancelled or delayed. As our Transport Correspondent Mike Pearse reports, nowhere were the problems more serious than in Sussex.
The big freeze kept its grip on the South - for a fourth day today. At airports, flights were grounded - and many train services struggled to cope. Thousands of children had an extra day off - as schools in the region remained closed.
Almost 500 schools stayed shut today. Buckinghamshire was worst affected with 177 schools closed. Sussex saw almost 160 shut. 84 remained closed in Hampshire, and almost 50 across Oxfordshire. Many more schools were partially closed or opened later in the day.
In some cases, parents were asked to bring shovels to help clear paths. But some headteachers and local councils have been criticised for keeping so many schools closed. Chris Maughan reports.
The wintery weather has been causing problems in the skies and on the rails. Heathrow Airport has cancelled 131 flights - around one in 10 of the number scheduled for today.
Meanwhile, rail passengers have been left frustrated as snow and ice caused disruption on Southern and South West Trains. Our Transport Correspondent, Mike Pearse reports.
Many schools across the South remain closed due to the icy conditions, with staff unable to make it to work. But for Chandler's Ford Infants school, the conditions have proved no match for the determination of staff and parents - who clubbed together to clear the snow and open the school.