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.