The winter warmer will be welcomed by millions across the UK following a biting cold snap earlier this week.
A Met Office spokeswoman said milder temperatures would settle in most areas of the country.
Forecaster Sophie Yeomans said: “We’ve got a warm front coming in with a lot of clouds coming in and that is really keeping the temperatures in.
“We’re looking at highs of 10C on Saturday and 11C, maybe 12C for Sunday. There will be a lot of clouds, but there may be some sunny spells as well.”
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While the weekend will be a welcome break from the late November freeze this winter is set to be the coldest in five years.
Meteorologists told Daily Star Online the cold snap will bite back with a vengeance until at least Christmas.
Temperatures could plunge as low as -12C across the UK – even in southern England – throughout December, according to the Weather Company and Weather Outlook.
The Met office said temperatures will be colder-than-average in the run up to Christmas Day and may last until many weeks later.
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“We’ve got a warm front coming in”
Sophie Yeomans
John Hammond, founder of the digital weather service Weathertrending, said the icy conditions will be a “reality check” after last year’s relatively mild December.
He said: “Last December set the bar pretty high – it was positively springlike.
“By contrast this year, winds from the Arctic will bring a reality check.
“Temperatures will often be close to freezing, and some severe frosts are possible at night.”