Arctic air is set to sweep across Britain this week, bringing snow to parts of Scotland, northern England and Wales as temperatures plunge well below seasonal averages.
The Met Office expects higher ground to bear the brunt of snowfall, though lower-lying areas could see sleet or light snow showers during the coldest spells. The dramatic shift follows weeks of milder Atlantic weather, with an arctic air mass now moving southwards across the country.
Daytime temperatures will struggle to reach single figures in many areas, whilst overnight frosts are forecast to be severe in rural regions. The cold snap is expected to persist for several days, marking a sharp return to proper winter conditions.
Weather warnings for ice and snow are likely to be issued for specific regions, the Met Office said. Officials have highlighted risks of travel disruption on untreated roads and pavements, with hazardous walking conditions expected in affected areas.
Motorists are urged to check forecasts before travelling and allow extra time for journeys, particularly in areas prone to icy conditions. Local authorities and transport operators are preparing gritting operations and working to maintain public transport networks as the wintry weather takes hold.
The temperature drop will bring widespread frost and icy patches, requiring increased caution from the public as winter weather returns with a vengeance across the UK.