UK weather saw people enjoy sunny skies and high temperatures for much of the country.The tide is already turning with some Brits bracing temperatures of 4C this week.Now forecasters have warned the warmth is fading and the mercury will drop dramatically on Saturday.Minimum temperatures could plunge as low as -10C in areas of northern Scotland and to just -3C in some parts of Wales, while fighting to get above freezing around London and areas of southern England.Amid the latest Arctic blast, widespread frosts are on the horizon with shiver-inducing -5C nights forecast, reports TheSun.Met Office forecaster Dean Hall said: "It's going to turn much colder by the end of the week."An Arctic air mass is moving in from Iceland, drawing in colder.
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