The Met Office has elevated the West Midlands from level 2 to level 3 on its heatwave weather warnings scale. The East Midlands and Yorkshire remain at level 2.
The Met Office says heatwaves can be dangerous, especially for the very young, very old or those with chronic diseases.
If you want more information about hot weather and your health please visit www.nhs.uk.
If you are concerned about your health or somebody you care for, please contact NHS Direct on 0845 4647,www.nhsdirect.nhs.uk or your local pharmacist.
As emergency and social services prepare for the heat there are things you can do to stay cool and enjoy the weather safely.
We could be in for the longest spell of hot weather since 2006 as the heatwave shows no sign of stopping. But why is it different to others?
The Met Office has confirmed that today is the hottest day of the year with temperatures exceeding 30C.
Read: Britain basks in heatwave