Trick-or-treaters face a -4C Halloween night in parts of Britain ahead of a washout weekend and a risk of snow toward the end of next week.
Sub-zero temperatures will hit tomorrow, with chilly but sunny spells across the north-east of England while the south-west suffers showers.
And heading into the evening, fog will add an eerie quality to those heading out for spooky celebrations on October 31.
Pictured: The river Trent bursts its banks in Newark, Nottinghamshire, after 118 flood warnings and alerts hit the UK yesterday, stretching from Wales, up through the Midlands and into the north-east of England
Temperatures are set to plummet tonight before Halloween sees temperatures as low as -4C, with fog expected to add an eerie feel to Halloween
Milder Atlantic air will start to move in on Friday, meaning that the country will experience warmer weather, but snow is expected toward the end of next week
The Met Office predicts increasing clouds through Wednesday with intermittent rain in the west, and much the same on Thursday.
Heavy rainfall is forecast for Friday, though the temperature will be milder. Persistent rain last week led to several football matches being cancelled, train delays and rivers bursting their banks.
Friday will see strong winds sweep across the UK, before a spell of calmer, warmer weather across the country heading into the weekend and early next week.
Snow is expected toward the end of next week and temperatures are expected to plummet by November 11 due to high pressure. That pressure – which is set to hit on November 10 – is what is forecast to bring snowy spells.
It’ll be a chilly and foggy night for those who are heading out on trick-or-treats to celebrate Halloween as temperatures are set to fall below -4C (file photo)
Brian Gaze of The Weather Outlook Gaze told The Sun Online: ‘By Halloween a change starts to take place and it sets the tone for the rest of the week.’
He added that rain is expected to spread from the south-west of England up over the Scottish mountains before Outbreaks of rain spreading eastwards and over the Scottish mountains they could be preceded by snow for a time.
And after the horrendous flooding that hit Tewkesbury this week, he warned that other regions could be at risk of similarly turbulent weather.
There is an increasing risk of heavy rain as well as strong gusts heading into next week, meaning rivers could burst their banks.
The Avon burst its banks earlier this week, with 118 flood warnings and alerts in place across the country yesterday.
The Environment Agency issued 82 flood warnings and 117 flood alerts – with the highest rainfall total of 122mm recorded at Libanus in South Wales.
The downpours were particularly bad in northern England and the east Midlands, where 25 to 60mm of rain fell in the 30-hour period leading up to Saturday.