UK weather forecast: Arctic blast to send temperatures in Britain plummeting as low as -7C with maps turning purple

Colder temperatures will likely bring an increased change of snowfall, with weather maps turning purple in parts of Scotland and the north of England.

North-west Scotland is expected to face the lowest temperatures, dipping to as low as -7C.

It is also the area most likely to experience snow in the coming days.

Such a drop would constitute a significant change in weather compared with this week.

Britain has witnessed rainfall but is markedly more mild.

The Met Office’s weather update yesterday showed Exeter saw temperatures reach 13.8C.

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However, Fyvie Castle in Scotland did witness mercury dip below freezing to just -1.8C.

Temperatures are not expected to drop drastically until next week, on February 22.

Despite WXCHARTS' prediction, the Met Office’s long range weather forecast is far more pessimistic about the change of snow.

The UK’s national weather service said: “Higher pressure on Sunday with bright or sunny spells across much of the UK, though this could bring a greater incidence of night-time frosts and fog.

“Risk of a few heavier showers developing by day across the west and north, but for most staying dry.

“Staying mild and feeling warm in the sunshine.

“How long this drier weather lasts is uncertain, as mild, cloudy conditions with outbreaks of rain or drizzle are expected to return from the west or southwest either later in the week or during the following weekend.

“Northern parts of the UK may see the best of any remaining dry and frosty conditions, with the south most likely to see the majority of the rainfall.”