As Londoners enjoy a sense of pride over hosting a successful Olympics, it's easy to forget that this time last summer the city was showing a different face to the world.
It's exactly a year since rioting broke out in Tottenham, before spreading to other areas of the capital.
Ria Chatterjee reports
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The high of 35C was recorded on a Bakerloo line train between Piccadilly Circus and Oxford Circus at 2pm.
Weather forecasters say temperatures could reach 35C, beating the previous record of 34.6C in the scorching summer of 1976.
After years of political manoeuvring over the future expansion of Heathrow Airport, there has been an important development this lunchtime.