UK cold weather: Icy blast to sweep Britain with plunging temperatures in just weeks
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A transition from drier to wetter weather will strike as high pressure moves away to the east of Britain
An arctic blast is set to strike Britain in the coming weeks as temperatures plummet to single figures.
A band of low pressure could sweep across the UK at the end of September - causing day time temperatures to hit lows of 0C.
Forecasters warn that there is "considerable uncertainty over the timing and speed of this change" in conditions but it is "probable" that Monday, September 23 will be generally warm and sunny at the start of the week before turning "much cooler".
A transition from drier to wetter weather will strike as high pressure moves away to the east of Britain.
By midday on Wednesday, September 25 temperatures in Scotland and north east England could drop to 1C, and 0C in the north west.
The midlands and south east England will likely see lows of 3C.
According to the Met Office, by late September there is "a chance that more unsettled conditions may begin to develop".
A spokesperson said: "Typical Autumn weather will probably affect the UK with a mix of weather types during late September and early October.
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"Periods of wet, unsettled weather will likely be broken up by some spells of more settled, drier weather.
"Overall, the wettest conditions will probably be in the west with the east drier. Temperatures are most likely to be close to or slightly above average."
It comes after "cold Arctic air" struck the UK this week - triggering frost and temperatures to drop.
Forecasters warn that waking up on Friday morning "could be quite a shock to the system" as conditions become even colder.
By midday on Wednesday, September 25 temperatures in Scotland and north east England could drop to 1C, and 0C in the north west
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This September had the earliest frost seen in 20 years as low pressure moves in from the north east and clashes with high pressure in the Atlantic.
Conditions are expected to pick up over the weekend with temperatures jumping to 21C.
Net Weather forecasters said temperatures will likely be on "the warm side" until around September 25, before falling closer to the seasonal average.