The Met Office has warned next week the UK will be lashed by torrential rain, hail and thunderstorms. The Met Office forecaster said: “We’ll hold on to heatwave conditions across the southeast over the next few days.
“A mixture of sunny spells but increasingly widespread heavy, thundery showers.
“But, for tonight, a low cloud will move in from the east, across many central and eastern parts of the UK.
“Elsewhere, some clear periods but notice one or two showers down towards the south and the east.
“And a muggy night here, fresher towards the northwest.”
Sunday, however, will remain hot across many regions but low clouds will begin to move in from the east.
The forecaster said: “As we go into Sunday, low cloud will burn back toward North Sea coasts, leaving lots of fine weather, plenty of sunshine, but a scattering of locally, thundery showers across parts of England and Wales, reaching southern Scotland by the evening.
“A very warm, if not hot, day in the southeast, at 35 or 36C. Near 20C in Glasgow and Belfast.
“As we head through Sunday evening, showers will start to break out more widely – some of them quite heavy and thundery in nature.”
Additionally, public transport could experience delays or cancellations due to the weather conditions.
The storms may also lead to road closures or difficult driving conditions.
The weather warning reads: “Areas of thunderstorms are likely to develop over parts of the UK or nearby continent during the middle of next week, and will generally track north or north-westwards, potentially affecting all parts of the UK at some points during this period.
“Whilst the most intense thunderstorms, in some instances associated with large hail, will most probably be those triggered by the high temperatures of the day over England and Wales, other areas of storms producing heavy rainfall and frequent lightning could reach further north across Scotland and Northern Ireland.
“These could occur at any time of the day.
“Where the storms occur, rainfall totals of 30 to 40mm could fall in an hour, with some locations potentially receiving 60 to 80mm in three hours, although these will be fairly isolated.”
The Met Office’s Deputy Chief Meteorologist Dan Harris added that the weather will be turning colder next week following a heatwave over the weekend.
He said: “Whilst the extreme heat is likely to gradually decline through next week, we are also expecting the risk of thunderstorms to increase, with the potential for downpours of up to 80mm in just a few hours.
“On any particular day, however, a lot of places will miss these altogether.
“We’ve issued a broad thunderstorm warning for Monday and Tuesday for all parts of the UK, since although the ingredients are there, it’s just too early to pinpoint the details of exactly where and when thunderstorms will occur.”