The area of high pressure causing last week’s blistering heat has moved into eastern Europe, allowing temperatures to fall in the west.
South-westerly winds from the Atlantic have arrived in the UK, dropping temperatures and lowering the humidity.
On Monday, most places will be dry with sunny spells. Temperatures will be highest in the Midlands and eastern England – a more comfortable 24 or 25C.
On Tuesday, an area of low pressure is set to bring showers or longer spells of rain, mainly to northern and western areas.
Some of the rain could be heavy and thundery.