After days of hot, sunny weather during the working week, thunder and heavy rain are forecast as the bank holiday weekend gets underway.
Forecasters are warning the balmy conditions are set to break, with thundery downpours starting to roll in from the west this morning.
The Met Office has issued a yellow “be aware” weather warning covering much of the north of Scotland.
But yesterday the country again basked in warm conditions – with the Highlands and Moray enjoying the best of the weather again.
Temperatures topped out in Lossiemouth where the thermometers hit 29C, making it the warmest place recorded anywhere in the UK so far this year.
It broke a record which had lasted less than 24 hours set in Aboyne on Thursday, where the mercury reached 28C.
The temperatures remained high across the region yesterday, which enjoyed some of the best weather anywhere in the country.
But things are steadily set to change tomorrow, though it will stay warm.
A spokesman for the Met Office said that heavy rain and thunderstorms will start to edge in from the west, leading to some difficult conditions in some areas.
He said: “We will continue to see quite mild conditions, but there will be some heavy rainfall passing through from the west, mixed with some thunder and some showers elsewhere.
“That will move inland as the day goes on and the rain will be quite persistent and heavy at times.
“It will weaken as it moves east, but there will be a few scattered showers around it.”
One weather warning specifically covers the north-west Highlands, and a second covers much of Scotland, excluding the Western Isles, the north-east and Aberdeen.
Some heavy rain is possible in the Glasgow area during the Scottish Cup final between Aberdeen and Celtic.
The Met Office spokesman said that the weather front which brought the rain would weaken as it moved east and, by Sunday, the worst of the weather is expected to have passed.
However, it is forecast to be a largely cloudy day with several rain showers, although there will also be a few sunny outbreaks.