Heavy showers damp down hot spell
Parasols are being replaced by umbrellas as scorching heat and sunshine gave way to bursts of rain.
Londoners were caught in showers while heavy downpours fell on north west England, Wales and eastern and southern Scotland.
Forecasters also warned that average temperatures would soon replace the baking sunshine enjoyed on Monday.
While parts of Britain look set to enjoy highs of around 28C today, despite the showers, and tomorrow, it will feel noticeably cooler by Thursday.
Aisling Creevey, a forecaster at MeteoGroup said: "Today will be another hot day, particularly in the South East.
"We are generally expecting temperatures of 28C, but might get little pockets of 29C (84.2F) and 30C (86F) in sheltered areas with low winds.
"By tonight it will be dry in most areas, with perhaps some misty conditions developing, particularly across northern areas."
Another warm day is expected tomorrow. Cloud and showers could hit northern England, Scotland and parts of Wales, but the South East is expected to enjoy temperatures of 27C (80.6F) and 28C (82.4F).
But Ms Creevey added: "We are looking at Thursday where everything is going to change. It will go from fine and settled to cloudy with bursts of rain and temperatures dropping to average. It will feel noticeably cooler - between 19C (66.2F) and 23C (73.4F)."
On Monday, the mercury hit 28.1C (82.6F) in St James's Park and Kew Gardens in London, making it hotter than many holiday destinations.