Eurostar have said snow and ice in the UK and northern France were leading to speed restrictions and delays on all its trains.
Six services were also cancelled, with customers told they could exchange their tickets for another date.
More top news
Last minute suspension of strike action has meant thousands of cancelled procedures will still not go ahead.
Children in the North and the Midlands are less likely to get a good secondary education than those in the South, schools inspector to say.
Mild in the south but colder in the north tonight and turning frosty and icy - before rain moves in.