The UK is set for glorious sunshine from tomorrow onwards with temperatures peaking at 26C in the south of England on Saturday. Forecasters say Mercury will rise into the mid-20s on Thursday and Friday before plumes of warm air from the continent see temperatures soar. However the blast of warm air will be short-lived into the middle of the weekend as an area of low-pressure clashes with the hot-air, bringing thundery downpours across southwestern parts of England and Wales.
Netweather.tv forecaster Jo Farrow said: “High-pressure has settled across the UK, its bringing a lot of fine settled weather.
“And as the winds switch around to the south it is going to bring with it some warmer air.
“So lifting the temperatures through Thursday and Friday up around the 20C mark.
“But as we go into the weekend then things begin to shift, high-pressure nudges its way eastwards towards Denmark and that’s going to allow an area of low pressure head towards the west.”
Ms Farrow added: “But it takes its time, so on Saturday between the two we are going to have brisk winds coming up from the south that is going to lift temperatures even higher.
“So we could across parts of England and Wales see the low to mid 20C, perhaps around 20C for parts of Scotland and the high-teens for Northern Ireland.
“It will be blustery there will be plenty of sunshine and also it looks like it should start the day dry.“
However the weather will take a dramatic turn as night begins to fall on Saturday with a washout expected across large parts of England and Wales.
Ms Farrow said: “However that low-pressure edging in, its going to bring with it more cloud across Ireland into the southwest of England and Wales, later in the day and we will begin to see some hefty showers developing to come up against that warmer air.
“That theme then continues as we go through Saturday night into Sunday with these heavy and thundery showers pushing their way across more of Britain.
“Still some warmth across eastern Britain but a change through the weekend.”
Nicola Maxey, Met Office forecaster, said western parts of the UK will bare the worst of the changing conditions as showers and thunder begin to strike.
The Met Office forecaster said Saturday will see the last day of prolonged sunshine as the unsettled wet weather continues into Sunday.
Ms Maxey said: “We’ve got high pressure over the UK at the moment which is why we’re getting this nice, warm sunny weather and that’s going to last until the weekend.
“The day will start well on Saturday but we have a weather front coming to the country from the west.
“The south west and western side will see the weather change as we go through Saturday with increasing cloud and the chance of some rain, localised heavy showers and perhaps the chance of seeing some thunder.”
The Met Office forecaster added: “And that front will move across the country as we go through late Saturday night into Sunday.
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“The east side of the country will certainly hang onto that fine weather for all of Saturday and perhaps the start of Sunday.
“But as we go through Sunday that weather front will cross the country bringing cloud and showers to the east side of the country.
“Behind the weather front temperatures will be slightly cooler and there’s a showery set up as well.
“Saturday really marks the end of the prolonged sunshine.”
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