The Atlantic Azores Islands is pushing sweltering air to the UK, triggering the mercury to rise to more than 10C above the national average through today, Saturday and Sunday. But weather forecasters have warned Britons to make the most of it because from Monday there will be thunderous downpours that could trigger flash floods. Met Office meteorologist Nicola Maxey said: “We have high pressure building this weekend and although there will be the risk of the odd shower in central and northern parts of the country there will be plenty of sunshine and warm temperatures as air comes up from the Azores.
“We expect the good weather to hold out this weekend and through Monday.”
This weekend’s fine conditions are driven by a weather pattern hovering over the Azores Islands, off the coast of Portugal.
The region has been swallowed up by high pressure, which is making its way towards London before balmy temperatures begin to work their way upwards to the Midlands, Wales, the North of England, Northern Ireland and Scotland.
Ms Maxey warned the UK to enjoy the mini heatwave, as “more unsettled” weather is looming.
She said: “High pressure starts to break down and there will be the risk of showers and some of these could be thundery in places.
“As we go through the rest of the month there are indications that low pressure will be in control of the weather.”
This will result in a nationwide split, with the south enjoying the warmest summer weather this year so far, while the north will see temperatures plummet with thunder, lightning and in some regions, flooding.
Claire Kennedy-Edwards, senior meteorologist for The Weather Company, said: “It is a much more settled outlook across the UK with plenty of sunshine and dry conditions.
“West will be best over the weekend, a northerly flow will mean the warmest temperatures will be over eastern Scotland and south-west England.
“Next week the north-west, south-east split returns bringing plenty of dry warm weather over the south and south-east of the UK.
“There will be some showers to the north-west and temperatures will be around average to slightly above.”
The forecast comes as last month’s June was one of the wettest on record.