The Met Office has lowered the heat health warning across much of England to a yellow level 2 warning, urging people to be "alert and ready".
Both Wales and the North East England regions have been issued the lower green level 1 warning.
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.