A white Halloween could be the start to a bone-chilling winter as snow is expected in weeks.
This week the capital faced flooding in Knightsbridge.
Colder temperatures will take hold of the UK in early November, the Met Office has said.
Met Office senior meteorologist Greg Dewhurst told The Sun Online: “We’re likely to see some snowy weather in higher parts as October moves into November.
“Likely areas to be affected are the Scottish mountains as well as higher ground in northern England and northern Wales.
“Low areas are unlikely to see any. It’s quite normal for this time of year.”
Bookies believe a white Halloween could be on the cards in weeks to come in what they are calling the “big freeze” after a warm September.
Coral’s Harry Aitkenhead said: “We better make the most of any balmy temperatures because the end of October looks set to be a big freeze, so much so that we make it odds on for snow to fall this month in the UK.”
It comes after the Met Office said there was a “real chance” of snow in weeks.
Senior meteorologist at the Met Office Greg Dewhurst told The Mirror: “We’re now entering the time of the year when the change in conditions becomes really noticeable.
“As we enter October it certainly will get colder. Although snow is not forecast imminently, there is always a real chance in the weeks ahead. It is not uncommon at this time of the year.
“We have already seen snow in Scotland, and we could see some in other parts of the UK further down the line.”