Weather warnings are in place as gale-force winds are set to bring rain and possibly even snow to the capital this weekend.
An icy blast will see temperatures drop as low as freezing on Saturday as strong winds drag a band of snow across central and southern Britain, forecasters said.
It is likely to lead to hazardous driving conditions in many parts of the UK.
Issuing a yellow warning of wind, the Met Office said: "Please be aware of the likelihood of some difficult driving conditions and possible travel disruption."
MeteoGroup forecaster Chris Hogan added that Friday would deliver blustery showers, with conditions deteriorating into Saturday morning.
He said: "Early on Saturday, you're looking at temperatures pretty much near zero or one across the whole country - particularly in the east. The east will be the coldest."
The cold snap will last into Sunday, however the winds will become westerly from the beginning of next week and things should become more bearable.
Mr Hogan added: "This cold snap is probably not going to last too long, but obviously it's late November - it's not like it's going to become tropical."
Additional reporting by PA
