We could see top temperatures this afternoon of 34C, which is into the 90s in Fahrenheit.
But the hot and humid weather will lead to some ferocious thunderstorms across many parts of the UK.
After several deaths as people try to avoid the heat - a look at why swimming in quarries and open water is so dangerous.
Heatwave health warnings were issued today as the Met Office declared it was the hottest day of the year so far.
Why cucumbers really are cool and you should keep your phone in the shade to prolong battery life and other fun facts about the heat.