But looking ahead to the next three months, thermometers are forecast to remain higher than average, partially because of the effects of the prolonged heatwave.
But Britons should find a relief from the extreme heat from Wednesday, when temperatures will ip to around the mid -20Cs mark, according to the Met Office.
Forecasters describe an "Indian Summer" as a period of unseasonably warm and dry weather that usually occurs in Autumn, when temperatures typically start to plunge.
In a briefing for local authorities, the Met Office said that above-average temperatures were more likely than below-average ones between August and October.
After a sweltering hot summer, the United Kingdom could see warmer-than-average temperatures in the autumn, according to the Met Office.
She said: "This means there is an increased likelihood of warmer-than-average temperatures and below-average rainfall".
Britain's heatwave will continue for a couple more days this week before temperatures are set to drop.
"This also increases the chances of above-average United Kingdom temperatures, particularly in the early part of the forecast period".
Summer until October
'Further, warmer-than-average temperatures does not necessarily mean sunshine - it can be warm and cloudy too'.
The three-month outlook from the Government agency says if we continue to see the predicted above average temperatures, it could well be a record-breaking scorching summer across the UK.
This significant cooling comes after a hot period which saw comparisons drawn to the summer of 1976, which was the hottest in the United Kingdom since records began.
Temperatures could potentially peak at 34C (91.4F) in Essex or Norfolk on Tuesday, after a balmy weekend where the hottest temperature on Sunday was 30.2C (86.36F) recorded in Northolt, Greater London, the Met Office said.
The Met Office has issued yet another thunderstorm warning, as more heavy rain is expected to batter the county.
The outlook - used by planners, businesses and government to start plotting weather-related decisions - shows an increased chance of high-pressure systems close to the United Kingdom, meaning settled conditions are more likely than unsettled weather from our typical Atlantic weather systems.
Bookmaker Ladbrokes said the United Kingdom could still see 35C at least once this week before the heatwave ends.
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