Brits basking in the recent sunshine are set to be battered by freezing weather this week as temperatures are expected to drop to lows of around -1 degrees.
The latest cold snap is likely to last until the middle of March, although the weather should remain dry and bright until Wednesday according to the Met Office.
The weather authority said: "Cloudy with showery rain for southern areas Wednesday, this clearing Thursday.
"Much colder, clearer weather already across the north, then follows southwest late Thursday. Frosts becoming widespread."
The news comes after a "false spring" weekend of sunny skies and high temperatures for much of the country.
The mercury is not likely to reach double digits until March 23, with a Met spokesman saying: "Temperatures are likely to remain around average for the time of year, however a short colder spell is likely to occur at the end of next week for a time."
The wintery weather follows a balmy weekend across the UK, where temperatures of up to 15C were reported in the south.
Brits flocked to parks to make the most of the unseasonable warmth, a phenomenon known as "false spring" or "fool's spring" that often happens at the end of winter before temperatures drop again.
Despite the current chilly predictions, experts have put claims of a 270-mile "snow bomb", set to be heading for Britain on ice.
Temperatures across northeast Europe were forecast to plummet during the beginning of March, with Russia seeing -24C and Norway -16C.
There were fears the big chill could then head towards the UK shortly afterwards, turning the mild weather at the end of February to a distant memory.
There were reports of the cold front plunging temperatures as low as -4C in Scotland.
WX Charts also showed a possible 270-mile "snowbomb" headed for the centre of the UK.
However the Met Office has since dismissed reports the whole of the UK will be hit by a snow storm this month.
"I can see the weather system that is causing the excitement, but it’s too far away and too uncertain to have any indication yet," meteorologist Grahame Madge told SomersetLive.
"It is unlikely to see an easterly weather front coming across, but a white Easter is more likely than a white Christmas."
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