Brits are set to be battered by heavy rain again today before temperatures plunge in a wintery freeze.
A Met Office weather warning for downpours in Scotland remains in place until 3pm Wednesday, with other parts of the country also set for a soaking.
And chill northern winds this evening will see the mercury dip as low as 1C by Thursday, although forecasters warn it will feel more like sub zero conditions.
There could even be some snow, sleet and hail in parts of the UK, with a frost forecast for Friday morning.
Met Office forecaster Alex Deakin said: “It is going to turn much colder over the next 24 to 48 hours, Thursday particularly cold thanks to some strong winds.
“On Wednesday it will be a wetter day across Wales, western parts of England and Northern Ireland, all these areas starting pretty soggy in the morning.
“The rain still falling in western Scotland at this stage and continued risk of flooding and travel disruption.
“Much of eastern England and the Midlands will start dry but some showery rain will drift in here by lunchtime and then it turns wetter through the afternoon.”
Before a cold front moves in later in the day, England will see unseasonable highs of up to 17C on Wednesday.
But temperatures will fall soon after as winter makes an early appearance.
Mr Deakin said: “It will be turning colder everywhere because a weather front takes its rain across East Anglia and the south east in the evening.
“Another weather front starts to pep up in northern Scotland so there will be quite a bit of heavy rain here.
“Strong northerly winds will get very gusty on Wednesday night, and those winds will bring a real chill to Thursday.
“Over the hills we will see snow showers but even at lower levels sleet, hail and snow is possible.
“You will notice that different feel, it’s going to feel an awful lot colder. Quite a shock to the system.”