Icy fog will blanket Britain leading to plummeting temperatures as low as -5C overnight heading into a dour last weekend of the month.
The Met Office last night issued a yellow weather warning for fog lasting until midday today and taking in much of England and Wales.
Two weather fronts formed in the early hours, one to the northwest and one to the southeast, producing patchy rain – with showers continuing in parts through Friday, particularly in Scotland.
East Wales, the West Country, the Midlands, eastern England and parts of northern England have all been victim to thick fog and mist overnight.
The likes of Norwich and Birmingham plunged below zero as a cold snap blasted its way across the country.
While rural isolated areas were expected to plummet to between -3C and -5C.
And forecasters have warned the fog will take a while to clear, with some areas remaining grey and murky all day long as large swathes of the UK struggle to peak higher than 3 or 4C all day long.
Even the areas that see some sun will remain in single digits – before fog redevelops in the evening.
Met Office forecaster Alex Deakin said: “If you’re traveling in the morning, take note, allow some extra time for your journey. A cold start to the morning but the main feature will be that thick fog.
“If you don’t get the fog you should see some fine sunny skies lifting the temperatures after that cold start to high single figures. But where the fog sticks, temperatures are really going to struggle.”
Saturday sees some sunshine emerging in the morning in Scotland and Northern Ireland, but the rest of the UK will remain grey though a little bit milder with highs of 11-13C.
Mr Deakin said: “Generally, Saturday looking pretty glum for many with a lot of mist and low cloud sticking around – but dry for most as well. Just the odd shower here and there.”
He added Sunday looks to be another dry day, though “staying on the chilly side”.
UK 5 day weather forecast
Early fog and low cloud slow to clear from some areas and lingering all day over parts of Wales and central and eastern England. Rain at times for parts of northern and central Scotland. Otherwise mostly dry.
Fog patches returning to parts of England, Wales and southern Scotland. Early evening cloud in the far south also spreading northwards whilst evening rain over parts of Scotland clears.
Northern and central Scotland mostly fine and dry with some sunshine. Elsewhere, mostly cloudy with early fog patches lifting. Breezy in the southwest. Feeling chilly.
Outlook for Sunday to Tuesday:
Most places cloudy or foggy, some sunny spells developing Sunday, best in southeast. Rain in north spreading southeast Monday, still dry, cloudy in southwest. Sunny spells after fog clears Tuesday.