The Met Office has provided information regarding the high temperatures we are going to experience this week, see  https://www.metoffice.gov.uk/public/weather/heat-health/?tab=heatHealth&season=normal#?tab=heatHealth

Current watch level: Level 4 – Emergency – There is a 100 % probability of Heat-Health Alert criteria being met between 0000 on Monday and 0000 on Wednesday in parts of England.

There is high confidence that temperatures will be widely hot across much of England on Monday, especially central and eastern areas where temperatures are likely to peak into the low 30s.

The latest weather forecast details can be obtained at the following link: https://www.metoffice.gov.uk/public/weather/forecast/#?tab=map

Please see this link to some advice from the BBC News website  Heatwaves: What do they do to the body and who is at risk? – BBC News