If you've been out today, you won't be surprised to hear that it's been the hottest day of the year so far.
It reached 26.3 degrees Celsius in St James's Park - that's nearly 80 in Farenheit.
Great weather for us, but what about the animals at London Zoo?
We sent Martin Stew to find out how they're coping with the heat.
More top news
Richard Barnes, a former Deputy Mayor of London under Boris Johnson, has defected to UKIP. Here's why.
The ordeal began just moments after the cafe opened for business. The entire terrifying raid was caught on CCTV.
Boris Johnson is expected to deliver another attack on UKIP after an extraordinary claim about defectors having sex with vacuum cleaners!