Londoners are in for a wash-out start to the weekend before a cold snap brings frost and a drop in temperatures by Monday.
Forecasters said some parts of the capital will be lashed with rain for most of Saturday with downpours expected from the early hours of the morning until late afternoon.
“Most of London will wake up to a grey, damp morning tomorrow,” forecaster Helen Roberts said.
“But the rain will ease and become increasingly patchy as the morning progresses. The rain never clears completely.”
She said south west London will be the wettest part of the city while people in the north east will see the driest weather.
Temperatures are expected to be milder than normal tonight and tomorrow before plummeting on Sunday, the Met Office said.
Highs of 13C and 14C are forecast on Saturday and an average of 7C and 8C the following day.
“Sunday is a much improved day,” Ms Roberts said. “But cold across the whole of the UK.”
Monday’s weather will start on a cold note before becoming warmer and changeable throughout the week, the weather expert added.
Earlier this week Britain woke to its first major frost of winter today and snowfall in the Scottish Highlands after the coldest autumn night of the year so far.
It was still some way off the coldest November temperature of 2016 when a -12.1C was registered in Braemar.