The United Kingdom is set to experience a period of extreme weather variations as it moves towards the end of March. Initially, a forecast predicts a significant drop in temperatures across the country, including in major cities like Manchester, Birmingham, Cardiff, and Edinburgh, with lows reaching as low as 1C by March 31. Weather predictions from WX Charts signal a polar blast that will bring up to 114 hours of continuous snowfall from March 26 to March 31, with Scotland possibly receiving five to ten centimeters. The Met Office has highlighted the potential for heavy rainfall and chilly temperatures in certain regions, particularly the north, where cold conditions are expected to develop. This wintry turn involves not just snow but also strong winds, especially in the northwest.

Following this cold spell, a drastic shift in the weather pattern is anticipated, with a mini-heatwave forecasted to sweep across the UK. Temperatures are expected to rise significantly, reaching up to 18C on Wednesday and Thursday of the next week. This upturn in temperature will particularly affect the south and southeast, including London, Southampton, Dover, and Canterbury, where temperatures could hover around 16C. In contrast, northern areas like Newcastle, Edinburgh, and Aberdeen will experience milder conditions, with temperatures around 10C or slightly lower.

Despite the brief respite with higher temperatures, the Met Office has issued a yellow rain warning for parts of Wales, anticipating heavy rain that could lead to surface water flooding and transport disruptions. Weather expert Jim Dale predicts that the warmth will introduce a spring-like atmosphere early in the week but warns of colder nights and possible frosts to follow. The forecast indicates a return to cooler temperatures by March 23, along with frost, particularly in Scotland, showcasing the unpredictable nature of British weather during this transition period.