BRITS basked in the sun today as the last blast of summer brought highs of 26C - before temperatures begin to plunge to 14C by the weekend.
The rest of the week will see Autumn in full swing - with spells of rain, strong winds, and cooler temperatures.
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Temperatures hit a scorching 26C today in parts of southern England, with mid 20Cs across the Midlands and the North of the UK.
Forecasters have urged sunbathers to make the most of the blast of sunshine before it comes to an end.
Crowds flocked to parks and beaches to catch some rays in what are predicted to be the last days of summer.
Mercury is set to plummet by nearly 10C across Britain by Friday.
There will be highs of 15C in the South West of the country, while Scotland can expect chills of 9C.
By the weekend, Brits can expect spells of rain alongside stronger winds than usual.
Days will be cooler, and nights will feel chilly as the weather starts to feel more like Autumn.
The UK is due to be hit by a “polar plume” - and there could even be snowfall in parts of the country this week.
If the storm - the first of winter - develops enough to prompt amber warnings, the Met Office will name it Storm Aiden.
Rain and brisk winds are likely from Wednesday.
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A band of low pressure is expected to hit by Thursday bringing wet and windy conditions for most areas, with gusts of up to 60mph.
The Met Office said next week "will feel more like autumn", with wet, windy weather and cooler air.