'First widespread frosts of autumn' tonight as Met Office spots the possibility of snow

A top weatherman in Wales is saying that parts of Powys could see a real biting frost as a blast of Arctic air sweeps in across the county.

And the Met Office has even mentioned the possibility a 'potential snow event' next week as November turns into December on Wednesday, Thursday and Friday, but it's not a nailed on certainty just yet.

Temperatures have fallen across much of the UK, and the first widespread frost across the majority of the UK is forecast tonight, with lows of -5°C possible even in rural parts of southern England.

Senior meteorologist Derek Brockway, of BBC Wales, said on Twitter: "Coldest night of the autumn so far tonight into Saturday with a widespread frost. -4°C in deepest Powys.

"A fine, settled day tomorrow thanks to high pressure. Crisp and calm with plenty of sunshine. Saturday the best day of the weekend. Not so nice on Sunday!"

The Met Office says it will remain predominantly dry through Friday and Saturday but wetter interludes will move in from the west and north on Sunday bringing rain for many through Sunday afternoon and Monday morning before clearing to the south and southeast on Monday afternoon.

Next week it is forecast to turn colder again through Monday evening with a return to widespread overnight frosts. Conditions will also be largely dry, though some rain showers along the east coast could turn to sleet over higher ground.

Met Office Deputy Chief Meteorologist, Dan Harris, said: “Early next week, following a brief more unsettled interlude, we expect to see a return to widely cold but quiet conditions. Some rain, or showers, are likely to affect some parts of the east coast, and these could turn increasingly wintry over higher ground areas towards the middle of the week.

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“Thereafter, confidence in the detailed forecast falls, which is typical when looking this far ahead. It does look as though there will be a trend towards something more unsettled, as areas of cloud and rain attempt to move across the UK.

“At present, the most likely outcome beyond mid-week is that rain from the west slowly moves east, with snow possible over higher ground, and a continued risk of showers over eastern parts.

"However, there is a chance that a more active weather system arrives from the southwest, which would bring more widespread rain, stronger winds, and the potential for more significant snowfall should the air over the UK become sufficiently cold ahead of it.

“Either way, a continuation of colder than average conditions seems most likely, more details will become clear over the coming days and, as you would expect, we will be monitoring developments in the forecast closely.”