The UK is set to experience a sharp drop in temperatures after a mild weekend, according to the Met Office.
Highs of 16°C are expected on Sunday, but temperatures will plummet overnight on Monday, with some areas dipping as low as -7°C.
Despite the warm weather on Sunday, parts of the UK will face wet and windy conditions.
Rainbands will sweep across the country, with the heaviest rainfall expected in Wales and north-west England.
The rain will be brief, with dry spells in between, but the weather will remain breezy across the UK.
The highest temperatures of the weekend will occur in southwest England, where Sunday highs could reach 16°C.
However, showers are expected throughout southeastern England, with some bright spells in the afternoon.
Heavy rain is expected across parts of the UK, with temperatures dipping below freezing.Meanwhile, Wales and north-west England will experience heavy rain, contributing to the breezy conditions.
On Monday, a cold front will arrive, bringing temperatures well below average.
The onset of colder weather will be accompanied by showery rain and northerly winds, creating a chilly atmosphere.
Temperatures will struggle to reach mid-single figures, with overnight frost particularly affecting rural Scotland, where temperatures could plummet to -7°C, marking the coldest night of the week.
Furthermore, temperatures are expected to remain below average through Tuesday, with more rain moving in from the west.
However, by midweek, temperatures are likely to return to normal, with sporadic rainfall and occasional dry periods.