Bitter Arctic winds could plunge parts of Britain into the coldest spell of August weather for almost a century.
Thermometers are set to plummet as a stubborn band of low pressure drags air in from the north - with two weeks of wet, windy and cold weather on the horizon.
There is even a chance of snow and sleet over the mountains of Scotland as it dips to near freezing overnight.
Government figures show the last time it was this cold in August was in 1919 when the mercury rose no higher than 8.9C for four days in Yorkshire and Cumbria.
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