Met Office forecasts 36°C heat this week as Heat Health Alerts remain in forceA brief spell of fresher weather will quickly give way to another surge of heat this week as high pressure strengthens across the UK. Temperatures are set to climb day by day, with Heat Health Alerts remaining in force and further warnings possible as the heatwave intensifies. Highs will approach 30°C across southern England and parts of the Midlands. Thursday is expected to be the hottest day of the week, with temperatures potentially reaching 36°C across parts of southern England. The heat will also spread beyond the South East, with many parts of the Midlands, eastern Wales and northern England experiencing temperatures well above average.